Add compare() and get() in objectAnalyzr.js

Add ObjectAnalyzr.compare(), ObjectAnalyzr#compare(), ObjectAnalyzr.get() and ObjectAnalyzr#get().
Update documentation according to changes in objectAnalyzr.js

Add documentation for compare() and get().
Mark compareKeys() and getKeys() as aliases for compare() / get() and deprecated.
Update version to 1.1.0 in package.json