fixing issue with jshint

#2
update
Revert d71e9cb..4649d08

This rolls back to commit d71e9cb99009f1d04e4adf978d2a8a9faf6a9b45.
Revert 4649d08..7c079fe

This rolls back to commit 4649d08617e6bda4cd27efbb364bfc3fbc6b662e.
temporary fixing geInstance issue
Merge branch 'dev-first-usableversion'

Conflicts:
	Gruntfile.js
	dist/webglass.js
	dist/webglass.min.js
	package.json
Gruntfile fix

- concat main.js before other js
- replaced referenced "concat.dist.dest" with "concat_sourcemap.dist.dest"