Remove redundant "emacs" from package description

From within Emacs it will be clear that this is meant for use in Emacs. :-)
Merge pull request #35 from purcell/patch-1

Remove redundant "emacs" from package description
add melpa doc
Merge branch 'master' into dev
Focus the newly-opened Neotree buffer. Fix #32.
Update document structure
Update version
Solved issues with neo-dont-be-alone (issue #41). Removed extra space from NeoTree buffer name.

Conflicts:
	neotree.el
Merge branch 'dev' of github.com:jaypei/emacs-neotree into dev
added comments in README for evil mode
Merge pull request #44 from danielwuz/readme

added comments in README for evil mode
Merge branch 'upstream/dev' into less-verbose-keybindings

Conflicts:
	neotree.el