input_ToggleES is removed.

* mediacontrol-core.c: update to the new control API
* configure.ac, Modules.am: (unfinished) build changes

Output PDF instead of PS

You will need 
 * xsltproc
 * the docbook XSL package

 follow the key-pressed scheme (I have removed thoses seeks).
 Someone to do the work ?

  I haven't tested thoses changes ...

 * demux, access: change the prototype of access2_New/demux2_New.
 * control: implemented all INPUT_GET/SET.
 * src/input/*.c: removed old functions, move some of them.