add license to package info.rkt file

Relicense this repository under the Apache v2 and MIT licenses.

Add standard .gitignore file.

Remove extra directories.

Remove stray reference to Racket in LICENSE files.

LGPL by reference

2013 -> 2014

copy `responsible` info to "info.rkt" files

include license with each package

move "scheme" collection to a "scheme-lib" package

add `pkg-desc' and `pkg-authors' to each package

add "share", move "collects" back out of "lib", move "pkgs"

Use `#lang info` instead of `#lang setup/infotab`.

Move most of the `net` collection out of the core.

auto-fix dependencies in "pkgs"