Prepare for 0.0.8 release (GoogleCloudPlatform#131)

Add retry for compatibility store (GoogleCloudPlatform#119)

Prepare for 0.0.6 release (GoogleCloudPlatform#109)

Prepare for compatibility_lib 0.0.5 release (GoogleCloudPlatform#79)

Merge pull request GoogleCloudPlatform#60 from liyanhui1228/grid-fix2

Do not show python version incompatible results in dashboard

Add installed_version_time to release time table schema (GoogleCloudP…

…latform#51)