Prepare for 0.1.2 (GoogleCloudPlatform#259)

Prepare for 0.1.1 release (GoogleCloudPlatform#255)

Clean up (GoogleCloudPlatform#253)

Prepare for 0.0.20 release (GoogleCloudPlatform#244)

Prepare for 0.0.19 release (GoogleCloudPlatform#231)

Prepare for 0.0.18 release (GoogleCloudPlatform#221)

Check if the github cache is valid (GoogleCloudPlatform#204)

Prepare for compatibility_lib 0.0.15 (GoogleCloudPlatform#195)

Prepare for release 0.0.14 (GoogleCloudPlatform#189)

Set status to UNKNOWN when package is not in whitelist (GoogleCloudPl…

…atform#185)