init iOS commit
iOS: remove personal related data from git repo, modified gitignore file accordingly
ios: log in user when the return key is hit, just for fast debugging via simulator, and our user interaction flow will need to be re-examined anyway
ios: remove a warning, however, the idea fix should bring the login screen up after the mainViewController's loaded
ios165:code refactoring, delay user login flow
ios: remove hard-coded server domain
iOS: 1. create userEmail property for http request,
2. fixed a bug caused by hard-coded email,
3. code refactoring
iOS: store user account for next log in
ios: fix a crash caused by parsing experiment instances as different types
ios: fix another data model bug
Issue 199: add two data model update notification, code refactoring
Issue 199: add observer pattern so that we can remove the infinite spinner and refresh UI when downloading finishes. Not sure we should use KVO, should give it a thought later.
Issue 208: add participating view controller.
Issue 217: use pushViewController to make navigation bar visible.
Issue 219:
- add a segment control to allow user to choose from taking a photo or choosing a photo,
- change title to reflect user's choice
- fix a bug of missing nonatomic
ios: fix a minor issue caused by code refactoring
Issue 258: extract some classes from PacoModel to make it more readable.
Issue 258: extracted classes from PacoModel
Issue 264: add nonatomic to properties
issue 268: 1. remove almost all synthesizer, 2. change all ivar naming to conform to leading _ requirement