Ancient Greek language support for OpenOffice/LibreOffice

AncientGreek extension adds Ancient Greek Language support to OpenOffice/LibreOffice.
It includes:

- A spell checker based on Ancient Greek Spell Checker extension by Federico Boschetti, created for OpenOffice (version 2.1.5, last updated 15/02/2010, originally published under LGPL, GPL), which was based on Morpheus word list (provided by the Perseus Project).
- Hyphenation rules based on Tex Hyphenation Patterns for Ancient Greek (rev 592, last updated 13/09/2011, originally published under LPPL).
- Styles manipulation.
- Greek Basic to Greek Extended codepoints conversion.
- Beta Code, SPIonic, Sgreek, LaserGreek, GreekKeys, WinGreek, Son of WinGreek to Unicode conversion.
- Insert and convert "Nomina Sacra" expresions.
- "Alternative characters" conversion (and vise versa).
- Composite to Precomposed Unicode conversion
- Tags legacy conversion
- Ibycus Keyboard Layout