Features

• Add move_semantics5 exercise. (#746) (399ab328)
• cli: Add "next" to run the next unsolved exercise. (#785) (d20e413a)

Bug Fixes

• rename result1 to errors4 (50ab289d)
• move_semantics5 hints (1b858285)
• remove trailing whitespaces from iterators1 (4d4fa774)
• add hints to generics1 and generics2 exercises (31457940)
• remove trailing whitespace (d9b69bd1)
• installation: first PowerShell command (aa9a943d)
• iterators5: derive Clone, Copy (91fc9e31)
• quiz1: Updated question description (#794) (d8766496)
• try_from_into, from_str: hints for dyn Error (11d2cf0d)
• variables5: confine the answer further (48ffcbd2)