Code checked for both langopt LOPT_IT_DOUBLING and attribe $double.
LOPT_IT_DOUBLING is redundant. $double already has a test in
dictionary.test

Code had a check for tr->langopts.param[LOPT_IT_DOUBLING] & 2 but that bit value is
not used in any language. That logic was removed.

previous changing of variable names caused an error in the program logic.

Caused when creating LoadLanguageOptions().

Accidentally commented out in ac82698f.

These have no tests and should be refactore to be similar to other
langopts.

Note: This feature has no tests.

Note: This feature has no tests. It doesn't look very useful and I think
could be removed.

We currently have two switch statements. Every key should go to only one
of them.

The switch case in LoadVoice() currently mixes voice and language
options. This change will start separating them into two functions.

CheckTranslator will be moved to langopts.c. In the future there should
be no need to use it in voices.c. There will be other temporary
solutions also.

Note: Strange that FLAG_ALT7 is used but ALT4-ALT6 are not. Same with
R6p.

utf8_nbytes() is only used in dictionary.c. Others are moved to common.c

fb06936c b52d1f3afd and c4d8976fbc broke it.