Tweak bootstrap rake task description

Identified by @bradleypriest in #129.
bump version
update ember-data
bump version
updated readme to reflect bootstrap behavior
Update README.md

Not necessary to manually require ember, since this is done with the generator.
Merge pull request #139 from raulbrito/patch-1

Improve  README.md
Update README.md
Update vendored development ember.js to 1.0.0-rc.1
slight tweak to the readme about config.handlebars.precompile and clearing the cache
Merge pull request #141 from tpitale/master

I made a slight tweak to the README on config.handlebars.precompile settings
Merge pull request #140 from bantic/update-vendor-to-rc1

Update vendored development ember.js to 1.0.0-rc.1
Deleted all vendored .js files in favor of using -source gems.
Merge pull request #142 from machty/ember-source

removed vendored ember.js and handlebars.js in favor of handlebars-sourc...
adds class_option for passing ember_path

complete with tests for other non-tested generators
changes to ruby 1.8 hash syntax
changes to ruby 1.8 hash syntax
uses custom path for generator testing
adds some missing requires
Merge pull request #143 from mtylty/adds_generator_class_option_for_custom_ember_path

adds class_option for passing ember_path from the command line