utils.py: add function plot_same_navigation

Can plot several spectra which all share the same axes_manager.
Making it possible to change the navigational position of all the plots
at the same time.
Enforce Windows line ending on nsis files.
BUG-FIX: utils.plot_same_navigation had wrong variable name
utils.plot_same_navigation: improve docstring
Modify plot_same_navigation: add navigation parameter, rename function

Add navigation parameter which is passed to the individual plot
functions.
Renamed function to plot_sync_navigation
plot_sync_navigation moved from utils.py to drawing/utils.py
Merge branch 'master' into plot_same_navigation

Conflicts:
	hyperspy/drawing/utils.py
	hyperspy/utils.py
utils/plot.py: add drawing/utils.plot_sync_navigation to import
utils.plot.plot_sync_navigation: add preliminary docs in user guide
ENH: add slider option in navigator argument for plotting

Changed the behavior of s.plot(navigator=None), it used to
make a navigaton window consisting of sliders. Now it does not
create any window for navigation.

Added slider argument, which behaves similarly to the old None
argument.

Currently it will (probably) only work with signals with a signal
dimension of 1.

Will probably need to update some functions which rely on the
sliders to navigate.
Change plot_sync_navigation to plot_signals

Add argument sync, which if set True will let all the signals share
the same navigation positions. If set False all the signals will
have seperate navigation positions.
Change documentation to plot_signals (instead of plot_sync_navigation)
Fix typo in plot_signals documentation
Change instances of plot(navigator=None) to navigator="slider"
Modify docstring for plot(navigator=) argument

Add for "slider" option, and modify for None option.
Add documentation in visualisation.rst for plot(navigator=)
Merge pull request #150 from magnunor/plot_navigator_behavior

ENH: add slider option in navigator argument for plotting
Merge branch 'master' of https://github.com/hyperspy/hyperspy into edslab
Merge branch 'master' into BUG-FIX_uninstall_delete
Remove NSIS scripts that are now in hyperspy-bundle