refactor(gruntjs): make file jshint compliant
refactor(server.js): make file jshint compliant
refactor(.jshintrc): only use globals option and add angular variable
refactor(express.js): make file jshint compliant
chore(gruntjs): replace deprecated debug option
chore(gruntjs): jshint task: ignore test/coverage files
chore(gruntjs): stop watching test/coverage files to avoid server restart on file modification
style(config/env/test.js): replace double quote by single quote
chore(gruntjs): make mochaTest works and create watch tasks