reenable timer buttons
remove angular timer, time based on server time and local offset.
get pause working, format seconds as 0:00, reset timer after lift is marked.
fix header that doesn't line up for weightlifting
move formatting from milliseconds to seconds to the format method, broadcast pause time in order to keep clocks in sync
merge in from master
Merge pull request #66 from ieundhdyjfawbb/refactor/timer

Refactor/timer