Merge branch 'devel' of https://gl.mathhub.info/FrameIT/frameworld into devel

...info/FrameIT/frameworld/rectangle$Parallel$Proof.omdoc.xz

content/http..mathhub.info/FrameIT/frameworld/test.omdoc.xz

content/http..mathhub.info/FrameIT/frameworld/test1.omdoc.xz

content/http..mathhub.info/FrameIT/frameworld/test2.omdoc.xz

.../http..mathhub.info/FrameIT/frameworld/to$Domain.omdoc.xz

content/http..mathhub.info/LoViVo/gearbox/cogwheels.omdoc.xz

content/http..mathhub.info/LoViVo/gearbox/gb2.omdoc.xz

content/http..mathhub.info/LoViVo/gearbox/gb3.omdoc.xz

content/http..mathhub.info/LoViVo/gearbox/gearbox.omdoc.xz

content/http..mathhub.info/LoViVo/gearbox/temp.omdoc.xz

errors/mmt-omdoc/.err

errors/mmt-omdoc/DefaultSituationSpace.mmt.err

errors/mmt-omdoc/IntegrationTests/.err

errors/mmt-omdoc/IntegrationTests/CloseGapsTests.mmt.err

errors/mmt-omdoc/IntegrationTests/ExpectedTypeTests.mmt.err

errors/mmt-omdoc/IntegrationTests/SituationTheory.mmt.err

errors/mmt-omdoc/IntegrationTests/thy-parameter-bug.mmt.err

errors/mmt-omdoc/Library/.err

errors/mmt-omdoc/Library/gearbox.mmt.err

errors/mmt-omdoc/MetaTheories.mmt.err