Release: version 3.2.2
Update version strings in build files.
Merge commit '3a5f76e609a11ceab8a6ea068d06577897a6693e'

Conflicts:
	mopub-sdk/build.gradle
	mopub-sdk/pom.xml
	mopub-sdk/project.properties
Merge branch 'master' of https://github.com/mandarl/mopub-android-sdk

Conflicts:
	mopub-sdk/build.gradle
	mopub-sdk/pom.xml
	mopub-sdk/project.properties