gtk-vnc: upgrade 1.4.0 -> 1.5.0
Changelog:
=============
- Add API to allow forcing a visible cursor when remote
cursor is empty/fully transparent
- Fix regression handling unknown auth types which should
be ignored
- Fix double free in SASL auth error path
- Fix alpha cursor encoding by reversing pre-multiplication
of alpha channel
- Preserve colour map across desktop resizes
- Remove undefined symbols from linker version script
- Remove obsolete wiki links
- Expand refusal to use ucontext to all macOS platforms
- Improve debug messages for pixel encoding
- Fix compiler complaint about overflow in challenge
buffer in test suite.
- Add testing of cursor encodings (temporarily disabled
on big endian systems due to undiagnosed failures)
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>