* Refactoring CommandHistoryService to prepare "Recent" menu item feature.
* "Recent" menu implemented, but still not bound to commands.
* "Recent" menu implemented.
* Mosh executables changed.
* New mosh from dialog.
* CommandHistoryService implemented.
* Backward compatibility for command history implemented.
* Implemented mosh backwards compatibility for saved profiles. But the app doesn't work!
* Saved profiles are backwards compatible, and the app works.
* Adding readme file for new mosh.