Remove environs/tools.FindInstanceTools
Merge pull request #649 from axw/remove-environs-tools-findinstancetools

Remove environs/tools.FindInstanceTools

Reduce surface area of environs/tools as we reduce reliance on it. Eventually the simplestreams parts should be relocated and become client-side, import-only. Several users do not need to be using FindInstanceTools (use FindExactTools or just FindTools instead).
Fixed logging prefixes after moving state/api -> api/ and state/apiserver -> apiserver/
Merge pull request #659 from dimitern/fix-logging-after-api-move

Fixed logging prefixes after moving state/api -> api/ and state/apiserver -> apiserver/

After https://github.com/juju/juju/pull/655 got merged, I noticed some loggers are still using "state.api.*" and "state.apiserver.*", so this fixes these to drop the "state." prefix.

Also, added more logging to juju/testing/conn.go and state.Close() hoping to provide more context for fixing CI bugs like http://pad.lv/1348477.
Merge branch 'master' of https://github.com/juju/juju into 192-mongo-dont-depend-on-apiserver-params
fix error in juju bootstrap mock