UI improvements.
Added menu item for displaying HTML Help
Added "see also" links to SSH Keys and SSH Agent Forwarding
help pages.
Ensured that pressing return/enter will automatically run OK
button's event handler.
UI improvements
UI improvements
Adding to repository.
Merge branch 'CVLFAB-545-two-part-ui' of https://github.com/CVL-dev/cvl-fabric-launcher into CVLFAB-545-two-part-ui
Change key passphrase dialog now seems to work as intended on Linux
and Mac OS X (using pexpect).  Still need to do Windows implementation.
Moved SSH key dialogs into a subdirectory.