3.0.1: Bug fixes

This release fixes a stackoverflow when parsing certain expressions when compiling a script from .txt to .xq.
It also introduces proper error messages, that also print the line and column at which the error occurred, if a .txt is being compiled to a .xq.

Fixes:

• Fixed: Stackoverflow when parsing cedrtain expressions
• Fixed: When compiling .txt's, line and column information, at which the error occurred, are not provided