Bunch of design changes
add session VC to storyboard and create shell VC class
add activity tableviewcell, pull data from activity manager and customize search cell
add ui elements and timer function for session view, add pause/play btn
set up basic layout for activity details VC
make parse changes in several steps
finish parse migration
overwrite results of filemerge of storyboard file
Merge branch 'development' of https://github.com/bjray/fitlog into development