Merge pull request #56 from alouche/master

Linux distributions specific + minor shell safety belts
Testing testing
More work on travis CI testing
Update README.md

We love Travis CI!
Add a couple basic tests
Remove this test for now
Test cases for gvm use
Add alias test and basic gvm command test
Fix test ordering and default to empty install
Merge pull request #59 from moovweb/lots_of_tests

Lots of tests
fix typo
* Switch $* to $@
* Use double quote everywhere, to avoid potential future globbing or word splitting
* Beautify EDITOR eval
bin double quotes - best practice to avoid potential shell globbing and word splitting
properly reference variable label
simplify gvm-installer