Cache, failure speed, sandbox, docblocks

Implemented persistent lookup cache
Avoid 2 second wait on lookups that don't exist
Enable plugin in sandbox
Add missing blockblocks
Rebuilt package as 0.0.0.2
Improved link candidate search
Add Google links + update manifest
Fix 0.0.0.4 build
Fix quoted string regexes
Actually build it right
Merge pull request #1 from DaveRandom/master

my first pull