Clean up plugin READMEs and a few plugins

- fasd
- history
- mercurial
- pylint
- repo
- yii2

plugins/cake/README.md

@@ -10,6 +10,6 @@ plugins=(... cake)
 
 ## Note
 
-This plugin generates a cache file of the cake tasks found, named `.cake_task_cache`, in the current working directory. 
+This plugin generates a cache file of the cake tasks found, named `.cake_task_cache`, in the current working directory.
 It is regenerated when the Cakefile is newer than the cache file. It is advised that you add the cake file to your
 `.gitignore` files.