1) Make hash_* more robust in the face of bad parameters
2) Make messages_* more robust in the face of bad parameters
3) Tidy up gui_init such that localised messages are loaded at the
earliest opportunity
svn path=/trunk/netsurf/; revision=2998
- Convert Messages files to UTF-8 encoding.
- Replace local_encoding_name() with platform specific
utf8_[to,from]_local_encoding() functions - this allows mapping of 8bit
characters 0x80->0x9f (inclusive).
- All text that is rendered by the RISC OS Wimp is now converted to the system
local encoding prior to display.
- Lose the horrendous hack that was messages_get_key()
- Menu text is now translated to system local encoding on the fly (if necessary)
rather than at menu creation time. This allows the system alphabet to change
under us and our menus remain usable.
- The Languages menu now lists all languages that are present in the LangNames
file. In the case of selecting the UI language, those languages which are not
available are shaded.
svn path=/import/netsurf/; revision=1796
