With this patch applied the user can configure a directory to store
temporary/cache files. The history and cookies remain in RC_DIR.
I suppose the intent of writing the history to a temp file first is to
make the actual write an atomic operation. As rename() does not work
across mount points, we need to handle the temp file for the history
different to keep this behaviour.
Add a new type for the temp history file and handle this case different
when creating a temp file.
Throughout the whole code base only char * is passed, but a unsigned
char * is expected. This leads to several warnings.
Fix the interface and cast to unsigned char * internally to avoid any
changes to the behaviour.
This also fixes a bug in the tokenizing FSM in etc.c that prevented the !doctype element from being recognized; the fix is necessary because HTML5 detection depends on checking the !doctype element.
