CAY-1839 - applying pull request

commit 37d8e6113d6ef5a7f9419e43ceab77f40c7f4a60
Author: Savva Kolbechev <s.kolbachev@gmail.com>
Date:   Mon Oct 6 15:29:29 2014 +0300

    CAY-1839 | DnD for DataMaps, link all unlinked DataMaps with DataNode, Undo/Redo;
CAY-1839 Allow to link DataMaps to DataNodes from DataNode editor

release notes
Pull request #18 by Alex Kolonitsky

    add maven reporting plugins
    checkstyle, pmd, findbugs
    clirr - report about broken backward compatibility api
Pull request #18 by Alex Kolonitsky

* Andrus: removing references to Maven central
  Everything must be proxied via ObjectStyle repo for build perfomance and consistency
Pull request #18 by Alex Kolonitsky

* Andrus: adding new plugins to Eclipse ignores
CAY-1826 | Merge Entity Attributes and Relationships tabs together with one toolbar.

    * Pull request 19 by Savva Kolbechev
    * (Andrus) tweaking some labels for consistency
missing license headers
CAY-1961 | Fix RemoveAction for DataMaps in ProjectTree

* pull request 20 by Savva Kolbechev
CAY-1960 ExpressionFactory.exp(..) , and(..), or(..)
CAY-1960 ExpressionFactory.exp(..) , and(..), or(..)

* tweaking the API
* removing ambiguities
* optimizing binding within ExpressionFactory (no wasteful clone)
CAY-1960 ExpressionFactory.exp(..) , and(..), or(..)

* handling IN values
CAY-1960 ExpressionFactory.exp(..) , and(..), or(..)
CAY-1961 Fix RemoveAction for DataMaps in ProjectTree
CAY-1826 Merge Entity Attributes and Relationships tabs together with one toolbar.
Merge remote-tracking branch 'upstream/master'