Minor coding style fix.
More tidying.
Fixing feval for deltafuns

get() and feval() are consistent now and all tests
pass on my machine. This closes #663 and is a step
towards resolving #421.
Merge branch 'development' into feature-chebgui-new
Adding scripts to allow lap(u) = div(grad(u)
Fixing chebfun2der for diff.
Bug fixes.
Fix jumplines for color input.
Merge remote-tracking branch 'chebfun/fix-deltafun-feval' into fix-deltafun-feval
Merge remote-tracking branch 'chebfun/development' into fix-deltafun-feval
Loosen tolerances so that tests pass.
Update test for divergence(gradient(u)) syntax.
Removing two unused lines of code.
Improvements suggested by AA during review.
Tests for FOURTECH.
Merge branch 'fix-deltafun-plotstyle' into development
Slight arranging of GUI components.
Merge branch 'development' into fix-adchebfun-chebmatrix

Conflicts:
	@chebmatrix/chebmatrix.m
Fix vercat in Chebfun2 for argin = 1.
Minor changes to ADChebfun2.