Remove capybara from Gemfile. Use the same version as in gemspec
Bump up capybara requirement
Bump up version - 1.2.0
Ignore form submit clicks when no associated form

Ref: https://github.com/jnicklas/capybara/commit/0c22d98bbe7662b08428cb9545a27de877497dd6
Update travis config for recent rubies.
Tighten up the gem dependencies for the immediate release.
Replace usage of a constant with spec support.
Fix order dependence: reset Capybara class variable to expected value, not nil.
Check Capybara default setting for bubbling up exceptions.

In the capybara-mechanize testsuite, we turn this off to pass the capybara test suite. However, this maintains backward compatibility since the default value of `Capybara.raise_server_errors` is true.
First draft of allowing a config block to the Driver.