Update to next SNAPSHOT version
Updated to Spring 3.2.6 and added Lab 07 starter base
Added AOP excersise
Used Spring JDBC
Added transactions exercise
Updated main readme
Added lab07 solution primer
Revert "Added lab07 solution primer"

This reverts commit 7d5e920581e1cfc8d3c57bebe9f6019dfb1ae7b5.
Added proper lab07 solution
Update to next RELEASE version
Merge branch 'release/r0.5.0'