Release v1.6.0 on 2021-11-16.

1. 886d6fd fix logging: log_set_category_filter() for internal DL* logging cats by Neels Hofmeyr · 8 years ago
2. 7480226 fix logging: out-of-bounds check should end with user categories by Neels Hofmeyr · 8 years ago
3. d1a145e show bug in logging: out-of-bounds check should end with user categories by Neels Hofmeyr · 8 years ago
4. ca13574 fix logging: also catch first out-of-bounds logging cat by Neels Hofmeyr · 8 years ago
5. 42240de fix logging: redirection to DLGLOBAL for invalid categories by Neels Hofmeyr · 8 years ago
6. 9adf32f logging test: cosmetic: print target and don't print color by Neels Hofmeyr · 8 years ago
7. 79599ac logging: Move the filter check up as well by Holger Hans Peter Freyther · 8 years ago
8. 64e0eb5 log/test: Extend test case for log_check_level by Jacob Erlbeck · 9 years ago
9. 4b54cab logging: Move the logging test from OpenBSC into libosmocore by Holger Hans Peter Freyther · 12 years ago