Log Message:
Update to 1.7:

 o Fixed bug that resulted in empty "@:" lines in the templates.
 o Fixed a few bugs with the XSL code.
 o Supported a few more variations of C syntax.
 o Remove the internally-used '-struct' suffix from links to widget structs.
 o Fixed a few missing build dependencies.
 o Added a new "C-x4s" binding to the emacs lisp code, to insert a blank
   section header in the source code.
 o Fixed bug that ignored inline section header docs with '-' in their names.
 o Added a 'make docs' target that can be used to build the docs even when
   gtk-doc has been disabled at configure time.

(Yeah, I know I updated it to 1.6 earlier today... thanks to wiz@ for
pointing out the newest version.)