Fixed #210, providing a simple Ruby API over SharedPreferences.

More info on the Ruby docs:
https://github.com/calabash/calabash-android/blob/master/documentation/ruby_api.md
Implemented get, set and clear preferences as Android instrumentation so they
can be called before or after an application or activity starts or finishes.

This is decided internally in operation based on whether the app is running already
or not.
First take at dump command
don't use Results format for dump
added update_app methods to use adb install -r option for version migration testing
check result of adb install -r command for success
Added simple view dump support
Version 0.4.5
Added help text for console command.
Added dump command
Enable dump view by path
Fixing Ruby 1.8.7 support
Merge pull request #252 from s2k/master

Info about console command added to help file
Merge branch 'master' of github.com:calabash/calabash-android
Bump version
adding function to support for the calabash server to get the
chromeClient of the target WebView for sdk >=16. Any prompt message
which is intercepted by calabash and is not calabash msg can now be
forwarded to the target webView chromeClient.
Fix compilation issues with respect to latest ADT version.
aapt.BAT does not exist. Instead, execute aapt (which will execute aapt.EXE)
guard against null value.toString()
Merge pull request #258 from Giorgioshooter/JellyBean_webview_support

adding function support for the calabash server to get the