[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/publicip.py

@@ -0,0 +1,28 @@
+"""Displays public IP address
+"""
+
+import core.module
+import core.widget
+import core.decorators
+
+import util.location
+
+
+class Module(core.module.Module):
+    @core.decorators.every(minutes=60)
+    def __init__(self, config, theme):
+        super().__init__(config, theme, core.widget.Widget(self.public_ip))
+
+        self.__ip = ""
+
+    def public_ip(self, widget):
+        return self.__ip
+
+    def update(self):
+        try:
+            self.__ip = util.location.public_ip()
+        except Exception:
+            self.__ip = "n/a"
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4