Extended gitignore.
#90: Added first prototype of JW.AbstractArray.Counter.
#90: Extended JW.AbstractCollection.Counter documentation.
#90: Added a bunch of tests for unobservable collection counter.
#90: Tested observable collection counters.
#90: Updated version to 1.1.0.
#90: Mark integers and 'number' in documentation (JSDuck-compatible type).
#87: Made 'target' argument a named optional argument in all property helpers. Added tests for JW.UI.*Listeners.
Updated changelog.
Merge branch 'master' into development

Conflicts:
	.gitignore
	guides/home/README.md
	guides/ruhome/README.md
	public/jwlib/core/core.js
	public/jwui/core.js