javascript_aggregator 6.x-1.2

New Features:
- added Gzip support (implemented and committed by Rob Loach #290280: Add GZip compression)
- minify and Gzip javascript in footer (#450616: Enable minifaction for javascripts in footer)

Fixed Bugs:
#470734: May 20th Dev - $htaccess variable not set; $aggregated_file empty (thanks mikeytown2)
#409688: minified javascript not being referenced when $scripts is printed make Javascript Aggregator work with jQuery Update (thanks mrfelton)
#409730: Form Weight improve user interface with CSS_Gzip module