Merge pull request #3 from sailfishos/jb61000

Update to 3.27.1

[git] Move submodule repos to github. JB#51085

Merge branch 'jb54767' [#2]

Merge pull request #1 from sailfishos/jb54626

[cmake] Make LIB_INSTALL_DIR relative. JB#54626

Merge branch 'jb50531' into 'master'

[cmake] Allow to control the file API path. JB#50531

See merge request mer-core/cmake!13

Merge branch 'jb52890' into 'master'

[cmake] Update to 3.19.3. Fixes JB#52890

See merge request mer-core/cmake!12

Merge branch 'jb49360' into 'master'

[cmake] Remove CMAKE_INSTALL_LIBDIR from %cmake macro. JB#49681

See merge request mer-core/cmake!11

Merge branch 'jb49836' into 'master'

[cmake] Do not use absolute path in RPM macro. Fixes JB#49836

See merge request mer-core/cmake!10

Merge branch 'python38' into 'master'

[cmake] Add support for python 3.8 from upstream. Contributes to JB#48373

See merge request mer-core/cmake!9

[cmake] Use sailfishos.org mirror for submodule. JB#46923