Update GA lib, remove AdSupport.framework default, support UserId & debugging

## Updates
* Updates iOS Analytics SDK to 3.0.7 [see changelog](https://developers.google.com/analytics/devguides/collection/ios/changelog)
* Updates Android Analytics SDK to 3.02 [see changelog](https://developers.google.com/analytics/devguides/collection/android/changelog)
* Removes automatic inclusion of `AdSupport.framework` to address app store rejection issues (see [this bug report](https://code.google.com/p/analytics-issues/issues/detail?id=387))
* `libAdIdAccess.a` has been bundled as per [the notes on release version 3.03c](https://developers.google.com/analytics/devguides/collection/ios/changelog)

## Additions
* Added `analytics#debugMode` to switch on vebose logging in analytics
* Added `analytics#setUserId` to support analytics UserId 

These are supported by iOS and Android.  I have added functions that 'not implemented' log messages for Lavaca.

## Screenshots

Android log showing a GA collect request including UserId:
![screen shot 2014-05-13 at 14 19 37](https://cloud.githubusercontent.com/assets/2401/2957774/037dc9e8-daa3-11e3-875c-d52136724c3c.png)

iOS log  showing a GA collect request including UserId:
![ga-cordova-ios-verbose-logging](https://cloud.githubusercontent.com/assets/2401/2957776/071d4902-daa3-11e3-86d3-38478fcb51f4.png)

GA report screen showing real time events as reported by the device:
![ga-cordova-report](https://cloud.githubusercontent.com/assets/2401/2957780/0aa22854-daa3-11e3-9388-5ad81dc7be3b.png)