fix timer view
merge with master
Add dynamic heat map opacity based on number of sets completed
Add show method to exercise_history controller
Add div containers for abs element for heat map to show and index views.
Add show method to exercise histories controller
Merge pull request #43 from red-spotted-newts-2014/styling

Styling welcome page
mergining
setup for timer styling
removes sprockets
sprocket problem
merge conflicts js
merge with master
added high charts
added style to highchart
add rest attributes for exercise migrations
Merge pull request #44 from red-spotted-newts-2014/heat_map_opacity

Added high chart js image to measure rest vs active
link timer to rest stored rest attribute of exercises
make some color functions

one function returns background rgb values for an element. others set up a color changer function
add working interval coloring function
working colorizer function linked to timer
basic views and specs for timer function