Remove google closure, and start reworking the build system

Squashed commit of the following:

commit 446aae2afd089c28abd1d03a5fd20d4735837e16
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:50:17 2013 -0700

    stage-dir doesn't need to be cleaned

      Since everything goes into a common build tree now, cleaning just
    involves removing the entire build tree.

commit d8f531ddf8ee1406ec915502c28dc0eb3912d0ee
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:47:10 2013 -0700

    Switch to placing build artifacts in a build tree

commit 9eedeec8d6a1012b1b7e466120260276b1e952d4
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:35:01 2013 -0700

    Remove the closure_compiler and closure_linter

commit 5784158cf2cd55f0ffd01147ae014379ecc857fd
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:34:27 2013 -0700

    Move the scripts in build to tools/bin

commit 64a6a53ea0fd5e299e9d17c0e4f8fedf305272dc
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:27:55 2013 -0700

    Build jsdoc

      Also, remove the old Makefiles that were in doc, as they're not necessary
    anymore.

commit 1ef0d9e39cd4a24807ee6ca956fbc627fb851b9d
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:18:59 2013 -0700

    Conditionally build the manual

commit c326c58059e0d5035edecfd6261ee42797c49c2c
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:13:31 2013 -0700

    Get the html manual building again

commit 480fa132ffb0562eb3f61d45d79d3315b1d3cc29
Author: Trevor Elliott <trevor@galois.com>
Date:   Thu May 16 11:13:01 2013 -0700

    Move doc specific .gitignore stuff to doc/.gitignore

commit 8c108d4e0df848839bcd6b4c22d623053f590e95
Author: Trevor Elliott <trevor@galois.com>
Date:   Wed May 15 10:42:41 2013 -0700

    Fix some path inconsistencies in the contexts build.mk

commit ee53404be09cf26983365374da84ade564b92926
Author: Trevor Elliott <trevor@galois.com>
Date:   Wed May 15 10:37:40 2013 -0700

    Preliminary build system changes

     * Chrome extension builds, but there are problems

commit 474c6b88190787aeffd960ffb5855d31770e7141
Author: Trevor Elliott <trevor@galois.com>
Date:   Mon May 13 19:06:31 2013 -0700

    Remove the closure toolkit

1 files changed, 0 insertions, 61 deletions

diff --git a/tools/closure_linter-2.3.4/closure_linter/common/errorhandler.py b/tools/closure_linter-2.3.4/closure_linter/common/errorhandler.py
deleted file mode 100755
index 764d54d..0000000
--- a/tools/closure_linter-2.3.4/closure_linter/common/errorhandler.py
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2008 The Closure Linter Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS-IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""Interface for a linter error handler.
-
-Error handlers aggregate a set of errors from multiple files and can optionally
-perform some action based on the reported errors, for example, logging the error
-or automatically fixing it.
-"""
-
-__author__ = ('robbyw@google.com (Robert Walker)',
-              'ajp@google.com (Andy Perelson)')
-
-
-class ErrorHandler(object):
-  """Error handler interface."""
-
-  def __init__(self):
-    if self.__class__ == ErrorHandler:
-      raise NotImplementedError('class ErrorHandler is abstract')
-
-  def HandleFile(self, filename, first_token):
-    """Notifies this ErrorHandler that subsequent errors are in filename.
-
-    Args:
-      filename: The file being linted.
-      first_token: The first token of the file.
-    """
-
-  def HandleError(self, error):
-    """Append the error to the list.
-
-    Args:
-      error: The error object
-    """
-
-  def FinishFile(self):
-    """Finishes handling the current file.
-
-    Should be called after all errors in a file have been handled.
-    """
-
-  def GetErrors(self):
-    """Returns the accumulated errors.
-
-    Returns:
-      A sequence of errors.
-    """