Support all nu/rnu permutations

Closes #41.
Fix typo

Closes #42.
Fix count support for ]a

Closes #43.
Add repeat support for [e and ]e when using selection
Fix spelling
Merge pull request #49 from maximkulkin/move_command_selection_repeat_support

Add repeat support for [e and ]e when using selection. Fixes #48
Document accidentally committed paste maps
open folds when using cnext and lnext mappings

the maps associated with using the lnext, lprev, cnext and cprev commands didn't open folds, which the default commands do. this patch fixes that by adding 'zv' to the end of the maps for those two commands.
Merge https://github.com/tpope/vim-unimpaired