fixed #387 : make editable by default and check rename function for read only notebook
fixed #737 : select asset name text except extension
fixed #737 : excluding the file-extension
fixed #559 : selecting existing asset if same name used for renaming
fixed #559 : verified using jshint
fixed #387 : rename with existing asset name
fixed #737 : rename with existing asset name
removed asset replace code
fixed #737 : resetting asset name on using existing name
remove cruft

and stop the edit blink
closes #747
Merge branch 'pr/747' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js