Add "frame.h" #include in gdbarch.h.

This include is needed because gdbarch_dummy_id needs the full
definition of struct frame_id.

gdb/ChangeLog:

        * gdbarch.sh: #include "frame.h" in gdbarch.h.  Delete "struct
        frame_info" partial declaration.
        * gdbarch.h: Regenerate.

Tested on x86_64-linux by rebuilding GDB.

(cherry picked from commit eb7a547ad40c97ca306e29c94678e4eab1822089)
Avoid compiler warnings about incomplete parameter types.

gdb/ChangeLog:

	* dcache.h: Include target.h, to avoid compile time warnings.

(cherry picked from commit cb039ba4535a3e9ba59517dc973c842c513b4f05)
Automatic date update in version.in
Automatic date update in version.in
Merge remote-tracking branch 'gnu/gdb-7.8-branch' into 7.8