Build Vim by myself (clone from mercurial repository)
Revert "Build Vim by myself (clone from mercurial repository)"

This reverts commit 625b53874951a25a42252c5b1c05e67f9d063756.
Add commands for building Vim by myself

Thanks to @mizoki.
Use "libpython-dev" and "libpython3-dev"

Use them instead of "python-dev" and "python3-dev".
Integrate commands
Specify Vim version to v7-4-516
Merge branch 'vim-build'