Tables for Afrikaans, Hawaiian, Maori and Cherokee

thanks to Greg Kearney

TODO: check for errors and add tests
Added the tables to Makefile.am
Language code for Maori is "mao" not "moa"
fixup 8929363
Cherokee: fix a few issues with accents and such

thanks to Greg
Add a test for Cherokee

extracted from information provided by Greg: see
http://www.freelists.org/post/liblouis-liblouisxml/Updated-Cherokee-table,3
Clean up include statements and remove duplicate rules
Add a NEWS entry for the new tables
Fix the order in the Makefile
Fix a typo in a table name
Change the license to LGPLv2.1+

Greg gave me permission to distribute the files under public domain (see
http://www.freelists.org/post/liblouis-liblouisxml/Fwd-Re-License-of-Afrikaans-Cherokee-Hawaiian-Maori-Sotho-and-Tswana-tables).
To align the license with the rest of the tables I am changing the
license of his tables to LGPL version 2.1
Improve the NEWS entry
Merge pull request #9 from liblouis/tables/cherokee_afrikaans_maori_hawaiian

Tables for Cherokee, Afrikaans, Maori and Hawaiian from Greg Kearney