Fixed scripts/browser.py

Fixed scripts/browser.py to work with updated code (ie. without deprecated cfme_tests/fixtures/ and utils/browser.py code). Based on notebooks/Browser Session.ipynb
Refresh timer
Sanitizer
Minor changes in cloud stuff
Merge pull request #1008 from psav/refresh_timer

Refresh timer
Merge pull request #1033 from slouderm/fix_browser_script

Fixed scripts/browser.py
Merge pull request #1043 from jkrocil/fix-cloud-stuff

Minor changes in cloud stuff
Merge pull request #1026 from psav/saniziter

Sanitizer