Updates Gruntfile.js to only run lint and karma (not casper) when editing unit/intergration tests.
Updates Gruntfile.js to only run lint and karma (not casper) when editing unit/intergration tests.

slashk/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,Solinea/goldstone-server,Solinea/goldstone-server,slashk/goldstone-server,slashk/goldstone-server,slashk/goldstone-server,Solinea/goldstone-server,Solinea/goldstone-server