added out going video box resizing

added out going video box resizing similar to Skype video calls
emails added to cache open entry

need to add email buttons to DOM, check if emails are valid, and test. I
wrote this while tired. will check in morning
each invite sent adds a shortcut button to invite the person later

Every time you invite someone, their email will be saved on the page,
when accessing it through same device and browser through its cookies.
Good for testing, and end-user.

cleaned up prev commit
newline added
Merge pull request #30 from mohamed-ahmed/master

Added mini-contact list and outgoing video resizing