update for undocumented matlab java features
major: new single channel axes instead of multiple independent axes | changed some variable to more easily understood names
added back the arousal marking functionality
Merge branch 'hotfix-datFiles' into develop

added check for .dat files
fixes #16 such that data can be loaded from any directory as long as consistent EEG or Data structure
plot arousals in red on all channels | minor naming and comment update | add arousals as events in the EEG structure
added butterfly and reference channel plotting to upper time series plots | updated naming of some variables for consistency | added plotting loops for channels to avoid duplicate coding
check for axes handle as input | check for unrecognised character inputs for returned options
added figure export options for summary measures
minor updates for saw-tooth detection naming consistency
name change for template file
updated to dark colorscheme
fixed montage labelling error
added scale indicator dash to third channel | fixes epoch length adjustment plotting
removed EW directory as the plotter has been moved to csc-eeg-tools repository
additions to save output variables according to the manuscript
check for makePlot for the topography summaries
added optional flag for drawing the plot
added short Getting Started section
added new channel threshold parameter independent of reference method | optional flag for the progress bar | code clean-up