CB-7160 added manual tests
Removed js-module for tests from plugin.xml
Merging to work on top of test framework changes
added documentation for manual tests
merged with renamed tests dir
[CB-7313] minor tweak to documentation of watchAcceleration function parameters

accelerometerOptions is an object with a single optional key, now documented as such
changed frequency to period, as it is the period that is being specified, not frequency.
rebasing from master
This closes #16
CB-7249cordova-plugin-device-motion documentation translation: cordova-plugin-device-motion