added attendancesViewController; date utilities added; local time for date utilities fixed
practices are unique by practice date
practices can be selected and members are displayed
all parse objects are saved to parse on creation; attendances get created for active members for each practice
fixed Practice and Attendance updateFromParseWithCompletion; added parse synchronization on load
synchronization of attendance relationships is pulled correctly  from parse/pfobject
Merge pull request #3 from bobbyren/attendances

Attendances