Finish TM persistence from an imported file.

Rename Trans Memory rest service to include the word 'Resource' (in line with our other rest services).
Merge branch 'tm-import' of github.com:zanata/zanata into tm-import

Conflicts:
	zanata-model/src/main/java/org/zanata/model/ModelEntityBase.java
	zanata-war/src/main/java/org/zanata/tmx/TMXParser.java