added master/detail flow template for trainee list
refactored
added implementation for trainee_list. works with trainer API now.
added API handler - supports POST and GET with or without authentication. will add comments soon.
added some javadoc for APIHandler
changed TraineeListFragment to match change in Trainer API database.
Merge pull request #4 from csci477-team4/trainee_list

Trainee List works with Trainer API, also added APIHandler for  HTTP requests
LoginActivityTest

added LoginActivityTest
fixed the reload thing
Merge branch 'master' into marc
Merge branch 'master' of github.com:csci477-team4/pearsports-android
Merge branch 'master' of https://github.com/csci477-team4/pearsports-android
Merge master to john.
Merged master to john.