Merged module-cleanup branch.

Issue:
  http://code.google.com/p/pyngfm/issues/detail?id=3

Changes from Launchpad:

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revno: 17
committer: Duncan McGreggor <duncan@canonical.com>
branch nick: module-cleanup
timestamp: Thu 2009-04-30 15:21:01 -0500
message:
  Updated the README.
------------------------------------------------------------
revno: 16
committer: Duncan McGreggor <duncan@canonical.com>
branch nick: module-cleanup
timestamp: Thu 2009-04-30 15:04:21 -0500
message:
  Added a README file that contains a short usage example.
------------------------------------------------------------
revno: 15
committer: Duncan McGreggor <duncan@canonical.com>
branch nick: module-cleanup
timestamp: Thu 2009-04-30 15:01:11 -0500
message:
  * Renamed the pyngfm module to client.
  * Renamed the PyngFM class to PingFMClient.
------------------------------------------------------------
revno: 14
committer: Duncan McGreggor <duncan@canonical.com>
branch nick: module-cleanup
timestamp: Thu 2009-04-30 14:57:49 -0500
message:
  Combined the two small service modules into one.
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