Caller's Box Configurator per Harris Lapiroff

For contra dance callers who want to use the website The Caller's Box but with gender free terminology.

On The Caller's Box Website, this plugin:

• replaces “Men”/“Women” with either “Larks”/“Robins” or “Leads”/“Follows,”
• replaces “gypsy” with “right shoulder round”/“left shoulder round”
• replaces any figures containing the above words with appropriate alternates.

It does not do the following things (so far. Pull requests welcome!):

• Replace terms in notes or the glossary
• Offer compatibility with The Caller's Extension from Paul Morris
• Convert term names for search purposes