[Fix #360] Single bar width set properly

Signed-off-by: oleg komarov <o.komarov11@imperial.ac.uk>
[Fix #360] Single bar width set properly

Signed-off-by: oleg komarov <o.komarov11@imperial.ac.uk>
Merge branch 'fix360' of git@github.com:okomarov/matlab2tikz into fix360

Conflicts:
	src/matlab2tikz.m
Merge branch 'okomarov-fix360'