Rename sl4a_client to sl4a_shell.

This avoids confusion with the sl4a_client lib.
diff --git a/tools/sl4a_shell.py b/tools/sl4a_shell.py
new file mode 100755
index 0000000..93b8c42
--- /dev/null
+++ b/tools/sl4a_shell.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3.4
+#
+# Copyright 2016 Google Inc.
+#
+# 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.
+
+"""Tool to interactively call sl4a methods.
+
+SL4A (Scripting Layer for Android) is an RPC service exposing API calls on
+Android.
+
+Original version: https://github.com/damonkohler/sl4a
+
+Fork in AOSP (can make direct system privileged calls):
+https://android.googlesource.com/platform/external/sl4a/
+
+Also allows access to Event Dispatcher, which allows waiting for asynchronous
+actions. For more information see the Mobly codelab:
+https://github.com/google/mobly#event-dispatcher
+
+Usage:
+$ sl4a_shell
+>>> s.getBuildID()
+u'N2F52'
+"""
+from __future__ import print_function
+
+import argparse
+import code
+import pprint
+import sys
+
+from mobly.controllers import android_device
+
+# Dictionary of variables available by default to the console shell.
+gConsoleEnv = {}
+
+
+def _start_console(banner=None):
+    code.interact(banner=banner, local=gConsoleEnv)
+
+
+def _connect():
+    ad = gConsoleEnv['ad']
+    ad.start_services()
+    gConsoleEnv['s'] = ad.sl4a
+    gConsoleEnv['sl4a'] = ad.sl4a
+    gConsoleEnv['ed'] = ad.ed
+    print('Connection succeeded')
+
+
+def main(serial):
+    if not serial:
+        serials = android_device.list_adb_devices()
+        if len(serials) != 1:
+            print('ERROR: Expected 1 phone, but %d found. Use the -s flag.' %
+                      len(serials),
+                  file=sys.stderr)
+            sys.exit(1)
+        serial = serials[0]
+    ads = android_device.get_instances([serial])
+    assert len(ads) == 1
+
+    # Set up initial console environment
+    gConsoleEnv.update({
+        'ad': ads[0],
+        'pprint': pprint.pprint,
+    })
+    _connect()
+    _start_console("""
+Connected to {}. Call methods against:
+    ad (android_device.AndroidDevice)
+    sl4a or s (SL4A)
+    ed (EventDispatcher)
+""".format(serial))
+    gConsoleEnv['ad'].stop_services()
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Interactive client for sl4a.')
+    parser.add_argument(
+        '-s', '--serial',
+        help=
+        'Device serial to connect to (if more than one device is connected)')
+    args = parser.parse_args()
+    main(args.serial)