Added selenium updater

It should go to crontab
 On branch experimental
 Changes to be committed:
   (use "git reset HEAD <file>..." to unstage)

	new file:   update-selenium/update.py
Some updates in selenium config

Nothing critical, at all
 On branch experimental
 Your branch is ahead of 'origin/experimental' by 1 commit.

 Changes to be committed:
   (use "git reset HEAD <file>..." to unstage)

	modified:   jmeter/AggregateReport.jmx