#1629 LexMatlab: doesnt recognise X{1}' as valid syntax

[lostbard]

The following are valid matlab transpose operations (scintilla state in comment):
X' % correct
X.' % correct
X(1)' % correct
X{1}' % currently treats the ' as a start of the string
[1]' % correct

Attached patch fixes this to work for all the above.

[Neil Hodgson]

Committed as [506351].