Simple utility plugins

[gpfsmurf]

I've added a few simple utility plugins to the repo:

• RemoveWhitespace: removes blank lines, extra blank lines, or trailing whitespace; can easily be done without plugins but some people (i.e. me) are lazy
• PasteColumn: pastes whole columns
• StripSelection: excludes leading/trailing whitespace from selection; useful with PasteColumn above
• SwapLine: Ctrl+Shift+Up/Down to move the current line up or down

[vim]

very very nice