libxo-0.3.0

• Add --enable-text-only flag for small footprint scenarios
• Add docs for leaf flag
• Add some Sinhalese test cases; don't really work, but one day when I understand i18n more, this will help.
• Fix for issue #24; ship man pages
• Fix pretty printing of leaf nodes in a list
• Merge branch 'patch-1' of https://github.com/allanjude/libxo into develop
• Merge branch 'patch-2' of https://github.com/allanjude/libxo into develop
• Merge branch 'patch-2' of https://github.com/shamrin/libxo into develop
• Merge branch 'pretty_leaf' of https://github.com/allanjude/libxo into develop
• Merge pull request #27 from olevole/master
• Update xo_format.5
• add ability to parse command line commands
• add xolint checks for color/effect fields
• add docs for xo_set_version
• add man page for xohtml
• add uninstall hook for xolint
• add xo_open_marker
• add xo_set_version
• add xo_set_version test case
• add warning for bad state transitions
• fix xo_has_room bug (bad compare; a stinker!)
• finish xohtml
• docs for xohtml
• add {C:} docs
• allow whitespace in color/effect values
• doc: fix html output example (forgotten quotes)
• encoding modify documentation is incorrect
• fix incorrect example output, JSON output will contain the value 65, not 6
• fix release name
• flag xo_err{,x,c} with __dead2/NORETURN
• man xo(1): escaping for \n characters
• s/must/should/ s/to/two
• show oxtradoc dir in configure output
• the encoding modify text is wrong, is copy/pasted from the display modifier, and actually does the opposite of what it says,
• turn xop->xo_style references into accessor xo_style() to enable text-only rendering
• xo_error.3: mdoc cleanup.