Migrate Truth to com.google.common.truth, leaving some back-ward compatibility surfaces to give time for implementers of Subjects and SubjectFactories to migrate.
Revert the deprecation of org.truth0.Truth.{ASSERT/ASSUME} until we have more people moved over inside google.
Restore final to a private constant.
Update the javadocs to use the new static method, and to use more accurate propositions.
Merge pull request #110 from cgruber/migratetogoogle

Migrate Truth to com.google.common.truth