Revert not finished 1000 limitation fix commit (ef7222d484). We are going to put this into separate branch until it's finished.

Add vcs-load-dirs project to thirdparty directory. vcs-load-dirs project contains load-dir scripts for different version control sysystems including git, hg, darcs, bazaar. More information about the project: http://software.complete.org/software/wiki/vcs-load-dirs/ http://software.complete.org/static/vcs-load-dirs/doc//hg_load_dirs.1.html