Updated page-object Ruby gem

Change-Id: I7f15c0e37430e9a7e67025e2b555706a7b6d633a
Make it easy to run tests using PhantomJS

If BROWSER_LABEL environment variable is not set, tests will run using
Firefox. If it is set, the tests will run using the browser provided in
the variable.

Example for PhantomJS:

$ export BROWSER_LABEL=phantomjs

Change-Id: I37754f6e4a42c84fb0ffe53bc7eed2384102b41e
Do not run tests that have known bugs in PhantomJS

Change-Id: I39fe0f02943fcb0acf968ded87b35c49a45b9bd7
PhantomJS gets the same edit page as IE6

Change-Id: I1736d0dd6b35196241acb1bbd7433de06b27e1d8
Update RubyGems to version 1.8.25

Change-Id: I66c78c1fd9c4e1cb4cbe6c9e60a45ccdb3c3a158
Merge "Updated page-object Ruby gem"