Merge pull request #50 from willthames/master

Fixes for Rails 3.2
Updated spec, simplified description
Removed pkg and log folders as they're not really used
Implemented a new gem setup with Jeweler, time to get CITIER back on track
Version bump to 0.1.15
adding quotes around column names
single quotes create string literals. double quotes are needed to be represented as column names
added support for jruby

I've modified citier's sql_adapters.rb file so that it works with JRuby.

It is divided into one section for Ruby and one section for JRuby.

The JRuby section contains three modifications:

- Classes inherit from JdbcAdapter instead of AbstractAdapter
(JdbcAdapter inherits from AbstractAdapter anyway)
- the table_existsB? and views_existsB? method were modified to work
with postgres' JDBC support (in fact, I replaced citier's code with code
from the jdbc postgres adapter and adapted it in the views_existsB?
method)
- viewsL and tablesL were slightly modified to use exec_query instead of
query.
Merge pull request #57 from bostonbusmap/master

Adding double quotes around column names
Merge pull request #60 from HyveAG/master

added support for JRuby
update to include latest fixes
resolve additional merge conflict