Minor GLR optimizations cleanup
Minor GLR optimizations/cleanup.
Code cleanup
Source code cleanup
Extended Msg for delivering Shrodinger's token.
Added test for Shrodinger's token concept.
Buffer class improvements
Support of multiple actions in TdfaState.

Added git ignore for ctags file
Main code for Shrodinger's token
Disambiguation parameter for scan attributes.
Unified ScanAmbiguityResolver.
Updated c# parser with use of contextual keywords feature
Basic Shrodinger's token (aka ambiguous token) implementation (no main-token optimizations, no good test coverage).