Support editing connection and user details

- user can edit connection name, url, username and password
- when adding a new connection, if user wants to put login information,
remember me must be turned on
- if user turns off the remember me feature, the username and password
textfields are greyed out and non-editable
Merge branch 'master' of https://github.com/jegelstaff/formulize-iOS

Conflicts:
	Formulize Prototype/Formulize Prototype.xcodeproj/project.pbxproj
	Formulize Prototype/Formulize
Prototype/ChooseConnectionViewController.h
	Formulize Prototype/Formulize
Prototype/ChooseConnectionViewController.m
	Formulize Prototype/Formulize
Prototype/en.lproj/MainStoryboard.storyboard
Resolving merge conflicts