Initial changes to the website

Give a better sense of what camlistore is right away
More readable headings on those yellow bars
Reduce number of items in the nav
Add detail to download and getting started section
Turned mailing list page into community page
Style changes to the front page from aaron.
Reworked the code page
Added some pages to fill in, protocol and todo
Reorganized docs page
Redirect lists to new community page

Change-Id: I4e953e53618b93420f9f57aaf48d2d3651977b57
website: update redirects

Change-Id: I5ddfe0b018bcaed276521182cab8b3c977757ae9
Added AttrFilter to ClaimsRequest

This allows server-side filtering of claims by claimtype

Change-Id: I1f5368c17f8f9f59ea0add7df67033447e37bc61
Implemented an optional parameter (attr) in 'camtool claims' to filter by claim type

For example, to obtain all the versions for a given file use:

   $ camtool claims <permanode> --attr="camliContent"

Change-Id: Ibb267a0f95702faa0e7e763c99f99ee446559aac
sorted/sqlite: initialize DB when needed, added test.

Change-Id: Ibd418e357e2bed6a5beed2dda2f947c7c999fe92
C+A: add Hernan Grecco (Individual CLA)

Change-Id: I7b095e84b0c0616586d0df3ac1c259229be5f3a4
Merge "sorted/sqlite: initialize DB when needed, added test."
Merge "Added AttrFilter to ClaimsRequest"
Merge "Implemented an optional parameter (attr) in 'camtool claims' to filter by claim type"
search: escape r.AttrFilter in ClaimsRequest.URLSuffix

Change-Id: I90e5a87330dc6ae820f2f5f6e3887a26f341a2b2