* external/ocamlthrift/: deleted
* Makefile:
external/phylomel: deleted
* external/dependencies.txt:
deleted external/ocamlmpi
* Makefile: CEs deleted ocamlmpi
* Makefile: CEs
* globals/flag.ml: dead file
* lang_php/parsing/type_php.ml: dead file
CEs on removing Type_php
* lang_php/analyze/foundation/: deleted a few dead files