Revert "Add tomorrow to repo rather than dependency" - going to including it in skel rebuild

This reverts commit ff87d5e456.

eos/saveddata/crest.py

@@ -21,7 +21,7 @@ import urllib
 from cStringIO import StringIO
 
 from sqlalchemy.orm import reconstructor
-from eos.tomorrow import threads
+from tomorrow import threads
 
 
 class Crest(object):

eos/tomorrow.py

@@ -1,44 +0,0 @@
-# https://github.com/madisonmay/Tomorrow
-
-from functools import wraps
-
-from concurrent.futures import ThreadPoolExecutor
-
-
-class Tomorrow():
-
-    def __init__(self, future, timeout):
-        self._future = future
-        self._timeout = timeout
-
-    def __getattr__(self, name):
-        result = self._wait()
-        return result.__getattribute__(name)
-
-    def _wait(self):
-        return self._future.result(self._timeout)
-
-
-def async(n, base_type, timeout=None):
-    def decorator(f):
-        if isinstance(n, int):
-            pool = base_type(n)
-        elif isinstance(n, base_type):
-            pool = n
-        else:
-            raise TypeError(
-                "Invalid type: %s"
-                % type(base_type)
-            )
-        @wraps(f)
-        def wrapped(*args, **kwargs):
-            return Tomorrow(
-                pool.submit(f, *args, **kwargs),
-                timeout=timeout
-            )
-        return wrapped
-    return decorator
-
-
-def threads(n, timeout=None):
-    return async(n, ThreadPoolExecutor, timeout)