prep for jdk8 switch

git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/branches/jdk8@1228 f203690c-595d-4dc9-a70b-905162fa7fd2

pom.xml

@@ -9,7 +9,7 @@
   <artifactId>jackcess</artifactId>
   <name>Jackcess</name>
   <description>A pure Java library for reading from and writing to MS Access databases.</description>
-  <version>2.2.1-SNAPSHOT</version>
+  <version>3.0.0-SNAPSHOT</version>
   <url>https://jackcess.sourceforge.io</url>
   <inceptionYear>2005</inceptionYear>
   <developers>