Update and clean up vm.args docs
Updates based on feedback from @dp. Also eliminate a superfluous non-header header
Fix bad install link for 1.4.0
Also update filename
Add install link from downloads
Reference to old PBC Index documentation needs to remain the same.
Clean up aws tweaks
Added csharp stuff
Randomly jiggling things
Cleaned up language in PR

* Moved CSharp Taste of Riak to community driven library list
* Clarified language in CSharp Taste of Riak
Adjust Taste of Python to be consistent with the new client setup.
Update client features matrix with latest python features.
document rtq_max_bytes for v3
Fix max_fssink_node documentation