Prep for 0.2 release (0.2.rc1)

* 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 "Prep for 0.2 release (0.2.rc1)"