[z2078] Fix some warnings

* Fix compiler warnings "warning: no newline at end of file" (Linux/GCC).
* Fix compiler warnings "warning: '<class>::<member>' will be initialized after <class>::<member>" (Linux/GCC).
* Fix compiler warnings "warning: unused parameter '<param>'" (Linux/GCC).
* Fix a signed/unsigned warning

Signed-off-by: Schmoozerd <schmoozerd@scriptdev2.com>

(based on commit [12117] - 783ec4b)

Signed-off-by: stfx <stfx@hotmail.de>

(based on commit [s1696] - 19c8832)