issue #60 - added in defer placement logic

	added in demo for sortable list, which uses new defer placement logic
issue #60 - updated docs
issue #60 - styled demo
Merge branch 'master' into sortable_list_demo

Conflicts:
	dist/jquery.pep.min.js
more fixes for sortable lists
sortable demo - use position relative
added in touchhold demo
added in touchhold demo
finalzed touchhold demo
renamed stop event in touchold demo
more improvements to sortable-list-touchold demo
Merge branch 'master' into sortable_list_demo

Conflicts:
	dist/jquery.pep.min.js
updated custom constraint demo
Merge branch 'sortable_list_demo'