Release v1.0.9

Fix highlight, now using negative looking behind

Fix(again) highlight function to work with options

Add a changelog entry

fixes mileszs#129

fixes mileszs#128. Always apply mappings, even when using vim-dispatch

use &:lhlsearch instead of v:hlsearch, to keep compatibility

fixes changelog

fixes mileszs#124

Merge branch 'v1.0'

Conflicts:
	README.md
	plugin/ack.vim