Fixed issue #764

Changed the remove ikon to trash ikon and added notebook name while asking for delete confirmation.
Fixed Issue #648,overwrite query should disappear

overwrite div is removed after user clicks on the overwrite button
Fixed Issue #648,changed the way of deleting parent
Fixed Issue #648,removing the div using d3 selector.
Fixed Issue #648,using local variable
distinguish file *replace* for file upload too

not just for assets
Merge branch 'pr/783' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js
keep the message improvement but revert the button icon to remove

fixes #764
Merge branch 'pr/780' into develop
add css worker for syntax checking etc
select initial asset comment style by language

add newline to initial comment and put cursor at end
crazy typo
clean up jshint warnings
update dcplot
clean up wdcplot for jshint
revert 670b39b34
eliminate jshint warning
Merge branch 'resup-revert' into develop