2016-01-10: v1.5.1 - bugfix & improvements

• bugfix: evaluate and vi F7 didn't work for multi-line buffers
• bugfix: see did not work on the latest word
• bugfix: e.g. 'A' was parsed as 'a'
• bugfix: case insensitivity did not work for z/Z
• editor: use fg to bring back editor instead of RESTORE
• disk: added include (e.g. "include gfx" loads gfx module)
• disk: added device ( device# -- ) to switch active device
• disk: renamed load => included
• forth: added marker
• forth: made dump work in decimal mode
• forth: made .( immediate
• forth: removed no-tce
• forth: bring back modules