Minor documentation corrections:

1: Corrected plugin artefact co-ordinates
2: Corrected example usages of 'from'
Merge pull request #5 from eddgrant/master

Minor documentation corrections:
Update wrapper and version to released 1.10 of Gradle
Merge branch 'gradle-1.9' into gradle-1.10
Have docs reflect our current version, it’d be nice if this was auto-generated.