add 'about this fork' to read me
update gems and readme
update test dummy app
log deprecation output in file
add an simple ajax playground to test xhr requests
add favorite logger for ease of mind
REQUEST_URI is an not reliable

see https://github.com/brynary/rack-test/issues/26 for details
fixed parameter parsing

due to different in parameter parsing we need to add this hack to make
it work.
Merge branch 'feature_ruby_2' of github.com:easyPEP/batch_api into ruby_2_x

Conflicts:
	.ruby-version
	Gemfile
	Gemfile.lock
Update gems