Add more move shortcuts

New macros:

\butterflywhirl
\courtesyturn
\dosido

See #2
Add \gypsy shortcuts

New macros:

\gypsy
\gypsy*
\gypsyright
\gypsyright*
\gypsyleft
\gypsyleft*

See #2
Remove misleading description of move shortcuts
Update all move shortcuts to work the new way
Add ladies chain move shortcut

See #2
Add a basic swing macro

Closes #2
Fix some copy in the gypsy macro