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
Merge branch 'dev' into dev_dhtmlui
Work in progress on data storage.
-
Removed pyc
txt
Merge branch 'dev_proxyreq' into dev_domaindb
Merge branch 'dev_proxyreq' into dev_domaindb
Merge branch 'dev_proxyreq' into dev_domaindb
tests
tests
Merge branch 'dev_proxyreq' into dev_domaindb
Merge branch 'dev_proxyreq' into dev_domaindb
Merge branch 'dev_proxyreq' into dev_domaindb
Testing.
Merge branch 'dev' into dev_relstore
Merge branch 'dev_proxyreq' into dev_domaindb