chore(gulpfile.js): add tasks for compiling less to css and remove old css tasks
style(less): create less style sheet and copy existing styles
style(less): use the slate theme from http://bootswatch.com/slate/
style(css): remove old css files and fonts that have been replaced by less
Merge branch 'use-less-for-css' into improve-build-system
refactor(gulpfile.js): clean-up whitespace
chore(gulpfile.js): improve javascript tasks
Merge branch 'refactor-gulpfile-js' into improve-build-system
Merge branch 'improve-build-system' into develop