Add orientation

Fix #133
Add canned step for clearing text from an input field by it's layout id
Adding clear_app_data that will clear any data the target app has saved
Update ruby-gem/test-server/instrumentation-backend/src/sh/calaba/instrumentationbackend/ClearAppData.java

Added comment
Merge pull request #159 from withoutclass/feature-clear-field-by-id

Add canned step for clearing text from an input field by it's layout id
Merge pull request #143 from bootstraponline/master

Add rotation
Removing set_activity_orientation as we might not want to support it in the future. Use performAction('set_activity_orientation', ...) instead
Introducing `query` that will let you query into the view hierarchy. Still very immature but quite powerful.

Can be combined with `touch` like this:

    touch(query("button"))
Added TouchCoordinates
trying to touch the center of an element
Don't take screenshot when wait for fails.
Using equals instead of ==.
Remove accounts in clear_app_data
Fix NPE. Remove old activity.
Merge pull request #163 from bootstraponline/npe

Fix NPE. Remove old activity.
Removing keystore_alias_password since it is never used
Fails build if configured keystore does not match with signature of apk
Merge branch 'master' of github.com:calabash/calabash-android
update classpath for robotium
Merge pull request #161 from bootstraponline/remove_accounts

Remove accounts