* Now can open Windows full-path from command line arg
Example that now works: micro.exe D:\myfile.txt
* Now correctly retrieves the path from the input path string. Except for single-letter filenames
* Fixed line/cols, need to make the code prettier
* Fixed path matching with regex by @Pariador
* Fixed not stripping the line/col args from file path
* Added tests for ParseCursorLocation
The -l flag to the replace command means "literal" and will treat
the search term literally instead of as a regular expression.
The command bar also now supports expanding environment variables
and running expressions through the shell and using the result
in the command.
