remove transactions stuff from Test::Unit section

... as there is a specific section about it further down.
Make sure we are comparing gem versions, closes #1024

Due to rails/rails#8501, we can no longer case the Rails version to a float. This version should hopefully work on both Rails 4 master and on Rails 3.
Add 2.0.3 to history file
Prove that HTML in textareas is handled correctly
Remove focus
Whitespace begone
Return html inside textareas when page is loaded. Closes #1025
Focus again, ugh
Merge branch 'cast_text_to_string' of git://github.com/abotalov/capybara into abotalov-cast_text_to_string
Improve test for cast of text argument
Merge pull request #1026 from michaelrkn/e5be289d1ec7542bc9664e8f0c384bfe5c26a919

remove transactions stuff from Test::Unit section of readme
Cast to string if field has maxlength value, closes #989
Revert "Return html inside textareas when page is loaded. Closes #1025"

It seems like textareas must not contain HTML content according to the
HTML spec.

This reverts commit ca4781f186831f46b0549220389c95357d0863db.

Conflicts:
	lib/capybara/spec/session/node_spec.rb
Merge remote branch 'jnicklas/master' into capybara-2.1