Feature: Selectively enable extensions
Everything may be broken… Simplified rollback!
Error printing: remove useless 'File "..."' prefix
Switch test cases to new error format
Trying to fix rollback
outline grammar: support toplevel expression
Fix lexer positions handling
Cleanup bufpos interface, fix position comparison
Adjust rollback handling in tell command
Modify grammar for ;; and end in top expressions
vim: automatically load "ocamlbuild" when editing myocamlbuild.ml
error-recovery: Feed one more token to re_sync
Add test rollback_02

Recommit, was lost when I pushed -f
Introduce "PRJ" command to name project
Support multiple instances of merlin based on b:merlin_project variable
emacs: allow the user type C-c C-l during completion.
emacs: removed the character limitation for AC.
emacs: refactored the completion functions.
emacs: made customize for variables and reorganized the variable definitions.
emacs: fix a lot of docstrings.