rgb 1.1.0

Alan Coopersmith (12):

• Update README for gitlab migration
• Update configure.ac bug URL for gitlab migration
• gitlab CI: add a basic build test
• Build xz tarballs instead of bzip2
• Remove unnecessary casts from malloc() & memcpy() calls
• rgb.c: fix -Wdiscarded-qualifiers warning
• rgb.c: if filename is too long, report error instead of truncating
• README: provide more information on --with-rgb-db-type
• configure: Add --with-rgb-db-library option
• gitlab CI: build all 3 --with-rgb-db-type=(text|dbm|ndbm) options
• gitlab CI: stop requiring Signed-off-by in commits
• rgb 1.1.0

Emil Velikov (1):

• autogen.sh: use quoted string variables

Mihail Konev (1):

• autogen: add default patch prefix

Peter Hutterer (1):

• autogen.sh: use exec instead of waiting for configure to finish