Pattern refactor completed. Tokens are now driven through a string-based pattern, as well as more generic terms
Started moving callbacks and collision handling into separate modules
Added spec to test whether token options are sustained when documents are cloned. Closes #25
Major refactor completed. All modules decoupled from core module. Tests require refactor
Completed refactored specs for version 2.0.0
Revmoed randex dependency
Updated first draft of new documenation
Merged feature/token-patterns