Android: Added null-check, fixed duped permissions

- Added a null check I missed in my last commit.
- Fixed duplicated Permission ACCESS_NETWORK_STATE in manifest.

Change-Id: I0da93b3e83ac584cb8fe36b2c3b9f1c711b08a8a
Disable App Engine build tests, since GAE is Go 1.2 and we need 1.3

Will renable when App Engine supports Go 1.3.

Change-Id: I777f83f3b040aa873bf9d92f2401d7f430e930f0
Remove test.TB and use testing.TB, now that we depend on Go 1.3

Change-Id: Ie7c2e021a95705d2fe8379bdbb43c24fd0714836
blob: add SubFetcher interface

Change-Id: If33430e78fb51c2b5750d2d52cdbda350e0f8a24
storagetest: test SubFetchers

Change-Id: I0e5a3559523617e28a57a592fb5bebb881eebd16
Use storagetest to test the test.Fetcher

Change-Id: Iff97e87f2cb76ba8fc4af5b046409cfdc6d3c89f
localdisk, diskpacked, test.Fetcher: implement SubFetch

Change-Id: If9d09ab59a5bb73650c2668a8e0236d461287ef7
blobpacked: use SubFetch to fetch a block packed in another one

Currently untested, since the packing code isn't done.

Change-Id: Ida4b587509fa3aff82b1d070f3ef2366936e393e
Merge branch 'master' of https://camlistore.googlesource.com/camlistore