changed `linebreadth` mixins
fixed palette styles

TODO: chose colors
updated color javascript
made stylesheets efficient
started work on color scheme

cleaned up javascript and less,
added conversion methods,
TODO: finish choosing colors
added 2 colors
minor updates
added base bg and txt colors
upgraded to Less 1.7.0
added 2 gel colors
rearranged html content; moved label colors to colors.html; changed link colors
cleaned up css & js
added table bg and external link colors
Merge branch 'color-scheme'