v1.8.0

• Moved keyword documentation to: http://robotframework.org/Selenium2Library/Selenium2Library.html
• Library demo project was removed, users shoud use demo from: https://bitbucket.org/robotframework/webdemo
• docutils was removed as installation dependency.
• Edge browser support was added to Open Browser keyword [jfx].
• Unselect From List keyword was updated because selenium 2.53.0 or greater raised an exception if item can not be unselected.
• Get Element Size keyword was added [SergiuTudos]
• Alert handling was improved to wait alert be present
• Capture Page Screenshot keyword was enhanced to support custom index definition in the filename