android: Fix potential Null Pointer bug [Fix #10]

Add check to see if the launched activity has extra information. Without 
the check, this may cause a NullPointer error trying to apply 
`equals(String)` method on `null` when user want to use several PhoneGap 
plugins in their application.
android: use robuster string naming
Added cordova 3 configuration and moved files to meet standards.

Did not do android version since i won't be using nor testing it.
Update READEME.

Indicate this is the working-in-progress branch.
Update plugin.xml
Added full plugin setup instruction for iOS.
Modify plugin.xml to fix issue #4
ios: Add steps for setting up from scratch

Using cordova CLI(command line interface) to set
up Moodstocks plugin in an cordova(3.0+) project.
ios: fix typo and format in README
Added frameworks dependencies for iOS
move api credentials in separate file
fix hasardous crash when scanner found a result before video preview fully opened

Conflicts:
	src/ios/MSScannerController.m
ios: add support for new SDK features [#11]

Add support for setting following 3 features:
- use device orientation
- no partial matching
- small target support
ios: add compiler-flags in plugin.xml

This way we can save user some time to add the compiler flags themselves. 
This is an intermediate state. Finally we all be supporting both ARC and
non-ARC projects as mentioned in issue [#6].
Update README

- Remove extra steps, they are taken care by the plugin.xml
- Replace `cordova` by `phonegap`
- Add reference section
ios: Fix scanner orientation problem [Fix #7]

The fix contains 3 parts:
- Enable the auto-rotate according to user choice
- Rotate the video preview according to the UIInterfaceOrientation
- Make sure the web view is well positioned during the attachment/
detachment operations.

Thanks for the contribution of @stephanebachelier.
Fixed broken link to ios project setup in README file.
android: update imports

- Remove R class
- Update cordova classes' package name
android: add support for new SDK features [#11]
android: add android spec in plugin.xml