Implement support for specifying negated match

- Prepending - inverts the matching result.
- Fix logic window/drun browser.
- Breaks API as argument token_match callback changed.
- Update tests.

Fixes: #665

include/helper.h

@@ -61,14 +61,14 @@ int helper_parse_setup ( char * string, char ***output, int *length, ... );
  *
  * @returns a newly allocated array of regex objest
  */
-GRegex **tokenize ( const char *input, int case_sensitive );
+rofi_int_matcher **tokenize ( const char *input, int case_sensitive );
 
 /**
  * @param tokens Array of regex objects
  *
  * Frees the array of regex expressions.
  */
-void tokenize_free ( GRegex ** tokens );
+void tokenize_free ( rofi_int_matcher ** tokens );
 
 /**
  * @param key The key to search for
@@ -136,7 +136,7 @@ int find_arg ( const char * const key );
  *
  * @returns TRUE when matches, FALSE otherwise
  */
-int helper_token_match ( GRegex * const *tokens, const char *input );
+int helper_token_match ( rofi_int_matcher * const *tokens, const char *input );
 /**
  * @param cmd The command to execute.
  *