DOC: add new chapters
Update README
DOC: fix typo
DOC: fix typos
Ignore MANIFEST and any rst files in the root directory
DOC: change README.txt
DOC: improve intro
DOC: improve README
DOC: correct typo
DOC: improve intro
DOC: add new sections to Getting Started
DOC: new sections in getting started and improvements in tools
Merge branch 'master' into DOC_reorganize_user_guide
Merge branch 'master' into DOC_reorganize_user_guide
Merge branch 'master' into DOC_reorganize_user_guide

Conflicts:
	doc/api/hyperspy.drawing.rst
	doc/api/hyperspy.gui.rst
	doc/api/hyperspy.io_plugins.rst
	doc/api/hyperspy.learn.rst
	doc/api/hyperspy.misc.mpfit.rst
	doc/api/hyperspy.misc.mpfit.tests.rst
	doc/api/hyperspy.misc.rst
	doc/api/hyperspy.models.rst
	doc/api/hyperspy.rst
	doc/api/hyperspy.tests.io.rst
	doc/api/hyperspy.tests.rst
	doc/generate_api_doc.sh
	doc/user_guide/tools.rst
	doc/user_guide/visualisation.rst
Add missing Dielectric Function entry in TOC.
Merge pull request #173 from francisco-dlp/DOC_reorganize_user_guide

Doc reorganize user guide