Fix comments

Fixed test scripts

Added convenience method for other languages

Fixed strcpy overlap source/dest

Merge pull request #29 from mapcode-foundation/dev

Release 2.5.1 (changed comment)

Merge pull request #27 from mapcode-foundation/dev

Release 2.5.0

Fixed comment

Merge pull request #26 from mapcode-foundation/arabic

Added Arabic support

Removed exec

Fixed mapcode utility precision; added TODOs in code