Updating travis.yml
Add `noMenu` widget param and layer option. Update LayerControl README.
Merge pull request #283 from cmv/enhancement/LayerControl-no-menu

Add `noMenu` widget param and layer option. Update LayerControl README. Fixes #279
Update README.md

Fix inline code error.
Add csv and georss layer controls.
Merge pull request #285 from cmv/enhancement/LayerControl-add-csv

Add csv and georss layer controls.
Merge remote-tracking branch 'upstream/develop'