[etymology] Catch an unhandled exception

* Catch an unhandlel exception if the user doesn't provide any input
Add Travis and Coveralls badges to README
[wikipedia] Check if user provided valid input

* Check if the user provided any input
* Clear trailing whitespace
[meetbot] Catch an unhandled exception

* Check if meeting is running in listactions
[units] Catch unhanlded exception if no user input

* Catch two unhandled exceptions in distance and temp if the user
specified no input.
Merge pull request #484 from Erethon/master

[modules] Catch unhandled exceptions in multiple modules
Merge pull request #485 from singingwolfboy/badges

Add Travis and Coveralls badges to README
[rand] Re-enable disabled unit tests.
[ip] Add a unit test.

- Also add homedir attribute to MockWillie.config because it's required by ip.
[movie] Add unit tests.
[test_tools] Add debug attribute to MockWillie.

Ip module uses this and fails if it doesn't exist.
[core] Add ability for example-decorator tot take a list as results.

When multiple lines of responses are expected, they are given as a list to
test_tools.
[test_tools] Add capability to ignore lines of output.

Ip module outputs a notification if it's downloading the location database.
The best way to handle such notifications is to ignore them completely so
I added a way to do that.
[ip] Fix unit test to handle downloading database notification.

If the database isn't already downloaded there is an additional notification
which should be ignored.
[test_tools] Make a home dir for willie if the default one doesn't exist.

It looks like a unit test for ip fails because it tries to download the
location database into a directory that doesn't exist.
[test_tools] Fix incompatibility with Python 3.

In Python 3 filter of course returns a generator.
Added chanlogs module
Reduce code duplication for chanlogs
Mark chanlogs rules as unblockable
Lock log files before appending, to avoid race condition