mlt_repository.[hc]:

mlt_repository.[hc]:
  - dynamically locate and register modules instead of reading .dat files
  - added mlt_repository_register() and macros for modules and apps(!) to
    register their service factory functions
mlt_factory.[hc]: change mlt_factory_init() to return mlt_repository to app
mlt_properties.c: let mlt_properties_dir_list() take a NULL filter pattern
src/modules/*:
  - adapt to new module registration system - much simpler!
  - remove unncessary configure scripts (now optional!)

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@1058 d19143bc-622f-0410-bfdd-b5b2a6649095