Log Message:
update to 0.8.0
changes:
* Fix caching of members in the glib frontend causing issues with rendering
* Change glib public api to have a correct naming
* Some better error handling on corner cases
* Check the document stream is seekable when opening it
* Build fixes with autotools and with cmake
* Fix infinite recursion on some malformed documents when consulting the fonts
* Fix possible crash when asking for Movie contents