updated travis notifications
added backbone relational
deleted test/vendor now we only depend on lib/
updated .gitignore
updated underscore to 1..5.2
updated main.js

no need to use shim for underscore.js as we are now using
https://github.com/amdjs/underscore

updated paths to use lib/ instead of tests/vendor
Merge branch 'master' of github.com:ikhattab/syncro.js

Conflicts:
	.gitignore