added AbstractStoreInputOperator
corrected comment
Merge branch 'master' of https://github.com/DataTorrent/Malhar
removed duplicates in pom
Merge branch 'master' of https://github.com/DataTorrent/Malhar
Merge branch 'master' of https://github.com/DataTorrent/Malhar
Merge branch 'master' of https://github.com/DataTorrent/Malhar
depend on 1.0.1-SNAPSHOT
reverted d3 and moved ejs to deps
added datatorrent apache license template for netbeans useres
address minor warnings.
deploy
Merge branch 'master' of https://github.com/DataTorrent/Malhar
added package-info.java to lib/db
made most dependencies of contrib optional
removed unnecessary imports
added some comments
Set version to 0.9.4-SNAPSHOT
Merge branch 'master' into dt-0.9.4

Conflicts:
	front/npm-shrinkwrap.json
	front/package.json
	pom.xml
avoid unnecessary cast