redirect to main app when rstudio-ide helper app is invokved from the finder
re-create session streams dir if necessary
custom permutation for node-webkit and custom window opener for launching external urls
fixup external hyperlinks in help for node-webkit
node-webkit: open all but minimal windows externally
disable selected commands for node-webkit
node-webkit: disable view plot after save for pdf export
improve handling of file urls (only handle file:/// on windows)
restore view pdf plot after saving for node webkit
fixup links for all embedded iframes
update rstudio packages in server mode even it's just a session resume
use relative path for viewer static files in session temp dir
Merge remote-tracking branch: upstream/master