add NEWS
another crash avoidance for columns in view mode :-(
create RCloud.promisify_paths utility

so that users can promisify their own blocks of APIs
create upload_utils; artifacts

RCloud.upload_* should be available regardless of ocaps
because you can pass the ocaps into them now
access to session_pane.error_dest
default options for both UI.upload_files and UI-less upload

also give options to all upload UI elements
i think this is the most maximally configurable upload experience possible
update documentation of new upload functions
make panel sizing bar transparent instead of hiding it when inactive

fixes #802
tweak sizer positions and make sizing grid responsive to window resizing

fixes #803
tweak left side panel resizer pos
open/hide side panels based on size

size 1 <=> hidden
otherwise shown

fixes #801
Merge branch 'hotfix/1.1.2' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js