Tests for formmethod attribute support
Using formmethod attribute(if exists) in submit button
Cleanup save_* family of methods

* Better YARD documentation
* Make `path` argument of `save_screenshpt` `nil` by default
* Add `options` argument for `save_and_open_screenshot`
Don't specify fuubar in Gemfile.beta-versions as it was released
Increase wait times for window_opened_by spec due to slow Travis CI
Rubyforge is dead
Merge pull request #1382 from abotalov/fix_travis_failures

Increase wait times for window_opened_by spec due to slow Travis CI
Merge pull request #1377 from nidalaa/formmethod_support

Formmethod attribute support
Some doc fixes
Test should be tagged as :windows also
Update History.md

Fix typo
Use Rack::Lock to prevent concurrency when eager_load is false
Merge pull request #1398 from takashi/patch-1

Update History.md
Merge pull request #1390 from abotalov/doc_fixes

Some doc fixes
Merge pull request #1295 from abotalov/save_screenshot

Cleanup save_* family of methods
Merge pull request #1400 from jnicklas/rails_threading

Use Rack::Lock to prevent concurrency when eager_load is false
Merge pull request #1393 from route/master

Tests should be tagged as :windows also
check correct version string for rspec composable
Merge pull request #1383 from abotalov/remove_fuubar_from_beta_Gemfile

Cleanup gemfiles
tweak test timings for window API to improve reliability on travis