Add Gradle wrapper for Gradle 1.10
Ignore Gradle's 'build/' folders.
Ignore emacs backup files.
Fixup for test cases when the test application has no name.
Gradle files for all lib and example projects.

Some tests are failing.
Convert the rest of these to Gradle Android plugin 0.9.0
Merge pull request #458 from jasonschroeder/gradle

Gradle
Merge from unstable
Avoiding all warnings by using jars as dependencies instead of depending on mavencentral
Merge branch 'unstable' of github.com:forcedotcom/SalesforceMobileSDK-Android into gradle
Merge from gradle