What were we doing... On /b/1221540 stable's repeat points happen 90% through the length of each span! We should use lazer's more accurate calculations.
Also Curve -> Path.
Also fixes some typos and reduces spelling suggestions to hints.
Has a pretty large (>6) effect on pp for some maps.
Checked up against DB values + server-side build versions, and these 0.5s don't seem to exist. Brings calculations more in-line with osu!stable.