Fix ocamlfind-install rule in src/parser/Makefile
Fix ocamlfind-install rule in src/parser/Makefile

Summary:
The wtf8 dependency broke this rule. Easiest fix was to copy
the rest of the makefile and build in the root too.

Reviewed By: mroch

Differential Revision: D6067809

fbshipit-source-id: 07f8376e4edac17129b0390da3a98dda5a1ef643

jamesgpearce/flow,popham/flow,claudiopro/flow,nmote/flow,samwgoldman/flow,popham/flow,popham/flow,samwgoldman/flow,nmote/flow,AgentME/flow,jamesgpearce/flow,popham/flow,mroch/flow,TiddoLangerak/flow,claudiopro/flow,jamesgpearce/flow,ylu1317/flow,TiddoLangerak/flow,ylu1317/flow,claudiopro/flow,facebook/flow,facebook/flow,claudiopro/flow,mroch/flow,gabelevi/flow,TiddoLangerak/flow,gabelevi/flow,popham/flow,claudiopro/flow,nmote/flow,samwgoldman/flow,gabelevi/flow,mroch/flow,facebook/flow,facebook/flow,popham/flow,JonathanUsername/flow,gabelevi/flow,samwgoldman/flow,JonathanUsername/flow,JonathanUsername/flow,AgentME/flow,JonathanUsername/flow,mroch/flow,gabelevi/flow,AgentME/flow,samwgoldman/flow,TiddoLangerak/flow,samwgoldman/flow,JonathanUsername/flow,facebook/flow,AgentME/flow,nmote/flow,jamesgpearce/flow,jamesgpearce/flow,mroch/flow,ylu1317/flow,mroch/flow,ylu1317/flow,samwgoldman/flow,nmote/flow,ylu1317/flow,JonathanUsername/flow,JonathanUsername/flow,AgentME/flow,gabelevi/flow,facebook/flow,jamesgpearce/flow,nmote/flow,gabelevi/flow,popham/flow,facebook/flow,TiddoLangerak/flow,jamesgpearce/flow,mroch/flow,nmote/flow