Prep for 0.2 release

* rename HACKING to HACKING.rst and refer to the common OpenStack HACKING file
* add the barest of pointers to the wiki, etc. to the source docs
* add a bare-bones man page

Change-Id: I80e5b972af645f14ef17ae87f182ab09cb08dabe
Merge branch 'tenant-b-gone' into dt-test
Merge branch 'rel-0.2' into dt-test