Resolve "refactor databaseQuery to use rowIds instead of rowUIDs"

Closes #18

See merge request !17

Merge remote-tracking branch 'new/dev' into 18-refactor-databasequery-to-use-rowids-instead-of-rowuids

# Conflicts:
#	lib/MemriApp/Controllers/Database/DatabaseQuery.dart

fixed int division expression resolving from `round` to `floor`; added useful warnings for unexpected cvu expression types

Resolve "Edit mode for GeneralEditor"

Closes #123

See merge request !24

# Conflicts:
#	lib/MemriApp/UI/Renderers/GridRenderer.dart

Resolve "MapRenderer"

Closes #14

See merge request !23

Resolve "FilterPanel options"

Closes #22

See merge request !22

Wallet integration

See merge request !28

# Conflicts:
#	lib/MemriApp/UI/Renderers/GridRenderer.dart
#	lib/MemriApp/UI/Renderers/TimelineRenderer.dart