Update README.md

copy improvements
Release of version 2.1.0
RemainingLifetime property type corrected for ESTBeacon (Should be NSNumber)
Documentation update
Features:
 - Support for iOS 8 Authorization changes

Improvements:
 - Documentation updated
 - Option to define connection timeout and number of attempts
README and CHANGELOG updates
Update CHANGELOG.md
Merge pull request #149 from tarikozket/patch-1

Update CHANGELOG.md
Update Examples to work with Xcode 6 and iOS 8

- add iOS 8 Location Services authorization request
- remove the non-existing ExamplesTest target - causes build to fail in Xcode 6
Version 2.1.2 release

Improvements:
- Support for iOS 8 Authorization in Examples app
- Fixed problem with first time connection crashing
- Stability improvements
Changelog corrections
Corrected support for cocoapods
Missing armv7s architecture added to the library
Version 2.1.5, firmware udpate bugfix
Minor clean up of the location services authorization
Fix Location Services authorization issue in iOS 7
Request permission to use notifications in iOS 8
2.2.0 Features:
- Secure UUID rotation added to prevent from hijacking beacons
- Bulk update
- Estimote Analytics
- 8x faster firmware update
Bulk updater refactored, Bulk updater demo added, podspec corrected
Merge remote-tracking branch 'upstream/master'