Make term switching cyclic.
Make term switching cyclic.

The behavior for tab splits is kinda funky (it's kept equal after my
commit) -- one returns to the last or 1st term of the split, when
cycling reaches it, not the split it was in at the last time.

ihorlaitan/terminology,bssb/terminology,bssb/terminology,ihorlaitan/terminology,ihorlaitan/terminology,godfath3r/terminology,bssb/terminology,godfath3r/terminology,godfath3r/terminology