Added center / right alignment option to custom text display: Per default custom text was shown left aligned. Using '^' for center and '?' for right alignment the display of the custom text may now be improved. For proper operation the alignment had to be set to common handling mode and the blank characters had to be removed from the transmitted string. To avoid display of special strings (e.g. multilanguage) the write text via com interface will now block special characters

Heinrichs Weikamp OSTC4 update files.

The builds are for testing purposes only. Be careful, they might not work and are definitely not recommended for real dives.