Filter

- Generates debug message about filtering process.
Text

- Added formatter for <int, int, std::string>.  There cannot be many
  combinations remaining.
Filter

- Filter diagnostics include which data file was loaded.
Code Cleanup

- Removed unnecessary diagnostics.
Eval

- Removed std::cout diagnostics, stubbed the A3::dump replacement.
Eval

- ::dump method now colorizeѕ tokens according to a map.
Eval

- Removed exception handlers in ::infixParse, thereby relying on the caller to
  set up appropriate handling.
Eval

- Removed more diagnostics.
Context

- Removed obsolete A3::dump call.
- Marked all a3 references as obsolete.
CmdCustom

- Eliminated A3.
Diagnostics

- Further removal of diagnostic output.
Task

- Implemented an overloaded ::modify method that walks the parse tree instead
  of iterating over an A3 list.
- ::modify takes a Task::modType argument, which specifieѕ how words are
  handled (replace description, prepend to description, append to description,
  add annotation), and this eliminates the need for multiple modify methods.
- Marked existing methods as obsolete.
Command

- Marked obsolete methods as such.
CmdModify

- Converted from A3 modifications to Task::modify.
Filter

- The domSource function is no longer static, and is prototyped in Filter.h
  for general use.
Task

- Added Eval sources.
CmdAdd

- Converted from A3 modifications to Task::modify.
CmdAppend

- Converted from A3 modifications to Task::modify.
CmdPrepend

- Converted from A3 modifications to Task::modify.
CmdStart

- Converted from A3 modifications to Task::modify.