Tests are now run with external helpers

Change is also forcing to use java7, preparing to split out Leaflet.Draw specific features to separate module.
Merge branch 'master' of github.com:mstahv/v-leaflet

# By Federico Russo (1) and others
# Via Matti Tahvonen (3) and Mauro Bartolomeoli (1)
* 'master' of github.com:mstahv/v-leaflet:
  Added custom options support to LTileLayer (needs g-leaflet 0.4.8-SNAPSHOT)
  Added support for minZoom
  Revert "changed rectangles client side implementation to be only a "marker" for draw stuff" and extended RectangleTest.

Conflicts:
	src/test/java/org/vaadin/addon/leaflet/demoandtestapp/RectangleTest.java
fixing integration tests