Goodbye perlbrew (again), hello plenv (again)!
Added .psqlrc to customize psql client.

This is based on the guides available at
http://i-dba.blogspot.de/2014/02/colorizing-psql-prompt-guide.html?utm_content=buffer1da24&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer
and http://www.craigkerstiens.com/2013/02/21/more-out-of-psql/
Added SQL Formatter and jdaddy plugins.
Fixed postgres app path.
Major overhaul of Perl and git integration.

Stole a bunch of stuff shamelessly from Ovid.  Added the SQL Formatter back in
as well as tpope's jdaddy JSON plugin.