Fix tag matching when maplocalleader was changed.

A few of the xmledit functions relied on a mapping done by this script.

Users might change 'maplocalleader' and hence this mapping changes while
the script will still call the default binding, resulting in a no-op.

Simply calling the expected function directly side-steps the issue.
Merge pull request #37 from albertdev/match-tag-custom-localleader

Fix tag matching when maplocalleader was changed.