Fix HTML validation error.

id_element is not a valid HTML tag attribute name, so we replace it with
data-id-element which is valid in HTML 5.
Task to create a uglified version of the JS file
Autocomplete generator renamed to Autocomplete::Install generator
Generetor for the uncompressed JS version
Updated docs for 0.8.0
Version bump to 0.8.0
Fixed a couple of broken tests for 1.9.2
Updated integration tests files
Merge remote branch 'alexreisner/master'

Conflicts:
	integration/public/javascripts/autocomplete-rails.js
	lib/generators/templates/autocomplete-rails.js
Updated the right JS files for the data-id-autocomplete change
Reverted the data-id-element comments on README, will revert this on next release
Issue #59, it allows to specify custom json encoder
Re ordered the modules
First step to rewrite autocomplete tests
Rewrote the get_autocomplete_limit test
Rewrote get_object tests
Active Record ORM driver
Mongoid ORM driver
Mongo Mapper ORM driver with tests
OMG cleanup