Remove unused (if they really are unused) resources

[chalkos]

There are some resource files that don't seem to have any use. These files are related to internationalization files, but do not specify the language.

Examples:

• src/main/resources/properties/help.properties
• src/main/resources/properties/lang.properties
• src/main/resources/help/help.html

There are other files with similar names that also include a language code (_en, _pt, _hu, etc).

It would make sense that these are the default files that are used when the locale can not be determined, although there are some inconsistencies like src/main/resources/properties/lang.properties being in english and src/main/resources/help/help.html being in portuguese.

Maybe it would be best to assume the default language to be english?
Or ask the user for a preferred language when one could not be determined automatically?