Rewriting backend, ready to look descriptors.

- Now using more complete descriptor to store different data.
- HTTP code should be relatively clean now.
- Ready to focus at mapping response headers to new descriptors,
  update descriptors and respond data.
- After that partial content requests still need to be fixed.
- On this branch (dev_relstore) further structuring of metadata
  using domain, content hash indices etc.
New descriptors.
Testing.
Merge branch 'dev_relstore' into dev
Work in progress on data storage.
-
Removed pyc
txt
tests
Merge branch 'dev' into dev_relstore
-
Adding branch docs.
Fixes for maint.
Starting proper unit tests.
Removed accidental binaries
Merge branch 'test' into test_relstore
Refactoring.
some fixes.
Fixed Resource tests.
Fixing make, todo's