[core] restructure to allow PIP packaging

OK - so I have to admit I *hate* the fact that PIP seems to require a
subdirectory named like the library.

But since the PIP package is something really nifty to have (thanks to
@tony again!!!), I updated the codebase to hopefully conform with what
PIP expects. Testruns so far look promising...

bumblebee_status/modules/contrib/watson.py

@@ -0,0 +1,60 @@
+# pylint: disable=C0111,R0903
+
+"""Displays the status of watson (time-tracking tool)
+
+Requires the following executable:
+    * watson
+
+contributed by `bendardenne <https://github.com/bendardenne>`_ - many thanks!
+"""
+
+import logging
+import re
+import functools
+
+import core.module
+import core.widget
+import core.input
+import core.decorators
+
+import util.cli
+
+
+class Module(core.module.Module):
+    @core.decorators.every(minutes=60)
+    def __init__(self, config, theme):
+        super().__init__(config, theme, core.widget.Widget(self.text))
+
+        self.__tracking = False
+        self.__project = ""
+        core.input.register(self, button=core.input.LEFT_MOUSE, cmd=self.toggle)
+
+    def toggle(self, widget):
+        self.__project = "hit"
+        if self.__tracking:
+            util.cli.execute("watson stop")
+        else:
+            util.cli.execute("watson restart")
+        self.__tracking = not self.__tracking
+
+    def text(self, widget):
+        if self.__tracking:
+            return self.__project
+        else:
+            return "Paused"
+
+    def update(self):
+        output = util.cli.execute("watson status")
+        if re.match("No project started", output):
+            self.__tracking = False
+            return
+
+        self.__tracking = True
+        m = re.search(r"Project (.+) started", output)
+        self.__project = m.group(1)
+
+    def state(self, widget):
+        return "on" if self.__tracking else "off"
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4