Prevents the little horizontal jostle that happens in the detail page
when you press 'right' the first time.

Change-Id: Ic39607258c056bcee898463ef4ed80cc64799baf
Merge "Prevents the little horizontal jostle that happens in the detail page when you press 'right' the first time."
Wire up the remaing nav items.

Change-Id: I730b192a2f1945659e953cdf0d45c0a77b6e161b
Merge "Wire up the remaing nav items."
Whoops. Fix stupid bugs introduced right before I committed 2dd87d.

Change-Id: I6a6032c1d8e49b08ccd919d8b7bd69c00c8858e7
Fix thumbnail cache filename fmt pattern bug.

I noticed thumbnail files named like:

{"camliVersion": 1,
  "camliType": "file",
  "fileName": "scaled:sha1-da55749abffc24004177c32e8ea00687044910b8:2000x256:tv%!d(string=2)",
  "parts": [
    {
      "blobRef": "sha1-82810ad435f5354e4d8ad358a011bc221053b1bb",
      "size": 11239
    }
  ]
}

Change-Id: I3bc729917c226622e70fb662e0413eeacfda6d93
When caching resized images, don't use a file schema blob and lots of little
chunks when the size of the resized image is under 16 MB.

Also add some more expvars counters.

Change-Id: I769247edf3819ca95669bdf9a1c8d3876c54095b