Tag the 1.8.0 release
Bump version number to 1.8.0
(Closes issue #114) : Feature request: ability to use powershell.exe instead of cmd.exe for console
Silence compiler warnings for the x64 build.
(Fixes issue #113) : Incorrect ordering of tool bar items
Update copyright to 2010.
(Closes issue #109) : new command: up one level
update help window.
(Closes issue #101) : Hotkey suggestions
(Closes issue #110) : new command: hide extensions