Merge pull request #45 from Codecenter/master

nextItemId/prevItemId should return null instead of throwing IndexOutOfBoundsException
Fixed nested item property null pointer exception when item was added.
Applied fix for Vaadin LCQ container issue #46. Kudos to michaelhwalther.
Update MockQueryFactory.java
Merge pull request #48 from simonegiacomelli/patch-1

Update MockQueryFactory.java
Optimizations and updated to latest aceeditor and vaadin versions.
Added log4j dependency to lazyquerycontainer to add possibility for debug tracing queries. Optimized groom views.
Added possibility to create reviews directly by pasting tags.
Made LazyIdList serializable
Merge pull request #58 from michael-simons/issue-57

this commit fixes #57
Automating build.
Automating build.
[maven-release-plugin] prepare release vaadin-lazyquerycontainer-root-2.1.1
[maven-release-plugin] prepare for next development iteration
Automating build.
[maven-release-plugin] prepare release vaadin-lazyquerycontainer-root-2.1.2
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release vaadin-lazyquerycontainer-root-2.1.3
[maven-release-plugin] prepare for next development iteration
Automating build.