Added taxon class, text filter, months dictionary

 * Taxon class fields based on definition file supplied
 * Regex substitutions explained in code comments

TODO:
* Add fields for MinAlt, MaxAlt in TaxonPanel
* Add methods to convert selected text to month
Added text edit form, month copy functionality

 * Double-clicking on a 'memo' field will open up a modal editor to make it easier to review and change text. Clicking the Update button updates the original field.
* Added a dictionary with common month abbreviations. Clicking the copy button will return the month value and update the combobox if a valid month name or abbreviation is selected. Trims punctuation from the end of the selection.
merge to resolve conflict between local and remote