new codepages:

- 808   OEM Russian; Cyrillic + Euro symbol
- 872   OEM Cyrillic (primarily Russian) + Euro Symbol
- 1010  IBM EBCDIC French
- 1132  IBM EBCDIC Lao (1132 / 1133 / 1341)
- 47451 Atari ST/TT

other changes:

- updated travis versions for test
- miscellaneous adjustments to tooling