Make OSGi work again

* Specify correct (Java 8) execution environment for OSGi
* Accept any servlet 3 version

Change-Id: I170d4577218e773bc17c14342bc7f93572932fcc

client-compiled/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
 						<!-- Export package is handled in exec plugin -->
 						<Export-Package></Export-Package>
 						<Import-Package></Import-Package>

client-compiler/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
-						<Export-Package>com.vaadin.*;version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}"</Export-Package>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
+						<Export-Package>com.vaadin.*;version="${osgi.bundle.version}"</Export-Package>
 						<!--TODO decide gwt packages version number<Export-Package>com.vaadin.*;version="${project.version}",com.google.gwt.*;version="${vaadin.gwt.version}"</Export-Package> -->
 						<Import-Package></Import-Package> <!--todo find out what should be in Import-Package -->
 					</instructions>

client/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
-						<Export-Package>com.vaadin.*;version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}"</Export-Package>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
+						<Export-Package>com.vaadin.*;version="${osgi.bundle.version}"</Export-Package>
 						<Import-Package></Import-Package>
 					</instructions>
 				</configuration>

pom.xml

 		<javax.servlet.version>3.0.1</javax.servlet.version>
 		<javax.validation.version>1.0.0.GA</javax.validation.version>
 
+		<!-- OSGi -->
+		<osgi.javax.servlet.version>3.0.0</osgi.javax.servlet.version>
+		<osgi.execution.environment>JavaSE-1.8</osgi.execution.environment>
+		<osgi.bundle.version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</osgi.bundle.version>
+
 		<!-- Test dependencies -->
 		<junit.version>4.11</junit.version>
 

push/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
 						<Export-Package>VAADIN</Export-Package>
 						<Require-Bundle>com.vaadin.external.atmosphere.runtime;bundle-version="${atmosphere.runtime.version}";visibility:=reexport</Require-Bundle>
 					</instructions>

server/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Export-Package>com.vaadin.*;version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}"</Export-Package>
-						<Import-Package>javax.servlet;version="[2.4,${javax.servlet.version}]",
-							javax.servlet.http;version="[2.4,${javax.servlet.version}]",
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Export-Package>com.vaadin.*;version="${osgi.bundle.version}"</Export-Package>
+						<Import-Package>javax.servlet;version="${osgi.javax.servlet.version}",
+							javax.servlet.http;version="${osgi.javax.servlet.version}",
 							javax.validation;version="${javax.validation.version}";resolution:=optional,
 							org.jsoup;version="${jsoup.version}",
 							org.jsoup.parser;version="${jsoup.version}",
 							javax.portlet.filter;version="[${javax.portlet.version},3)";resolution:=optional,
 							com.liferay.portal.kernel.util;resolution:=optional</Import-Package>
 						<Require-Bundle>
-							com.vaadin.shared;bundle-version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}",
-							com.vaadin.push;bundle-version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}";resolution:=optional,
+							com.vaadin.shared;bundle-version="${osgi.bundle.version}",
+							com.vaadin.push;bundle-version="${osgi.bundle.version}";resolution:=optional,
 							com.vaadin.sass-compiler;bundle-version="${vaadin.sass.version}";resolution:=optional</Require-Bundle>
 					</instructions>
 				</configuration>

shared/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Export-Package>com.vaadin.*;version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}",elemental.*;version="${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}"</Export-Package>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Export-Package>com.vaadin.*;version="${osgi.bundle.version}",elemental.*;version="${osgi.bundle.version}"</Export-Package>
 						<Import-Package></Import-Package>
 						<Require-Bundle></Require-Bundle>
 					</instructions>

themes/pom.xml

 				<extensions>true</extensions>
 				<configuration>
 					<instructions>
-						<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-						<Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
+						<Bundle-Version>${osgi.bundle.version}</Bundle-Version>
+						<Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
 						<!-- Export package is handled in exec plugin -->
 						<Export-Package></Export-Package>
 						<Import-Package></Import-Package>

widgets/pom.xml

                 <configuration>
                     <instructions>
                     	<Bundle-Version>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</Bundle-Version>
-                        <Bundle-RequiredExecutionEnvironment>JavaSE-1.6</Bundle-RequiredExecutionEnvironment>
+                        <Bundle-RequiredExecutionEnvironment>${osgi.execution.environment}</Bundle-RequiredExecutionEnvironment>
                         <!-- Export package is handled in exec plugin -->
                         <Export-Package></Export-Package>
                         <Import-Package></Import-Package>