Relax checkstyle rules

Allow whitespace after cast to match default and Eclipse formatting.

Change-Id: I9c14d014bebb0b4507885d309ea5adc9d00279e7

checkstyle/vaadin-checkstyle.xml

         <module name="GenericWhitespace" />
         <module name="MethodParamPad" />
         <module name="NoWhitespaceAfter">
-            <property name="tokens" value="BNOT,DEC,DOT,INC,LNOT,UNARY_MINUS,UNARY_PLUS,TYPECAST"/>
+            <property name="tokens" value="BNOT,DEC,DOT,INC,LNOT,UNARY_MINUS,UNARY_PLUS"/>
         </module>
         <module name="NoWhitespaceBefore" />
         <module name="OperatorWrap" />