Merge pull request #2 from tkach/master

Added isIPad and isIPhone5 checks, updated description image
Add Xcode project for future tests
bump to 0.0.7
add installation section
Changes towards aesthetics

- new isiOS7OrHigher() method
- SYSTEM_VERSION... methods renamed to be lower-camel-cased
- i-methods are i-methods: isIPad->isiPad, isIPhone->isiPhone...
Update screenshot
bump to 0.0.8
Deprecate 'Interface orientations' section
Cut off non-iosenv stuff
Update screenshot
Get User agent back
Bump to 0.0.9
Update screenshot
Cut off unnecessary stuff
Cut off deprecations
Bump version to 0.0.11
Added isJailbroken() check