New QTodo logo as proposed in  #79

More contemporary and 'easy' look. Drops the .txt for better
legibility, puts the stress on the Q and the V-mark.
New QTodo logo files
QTodo OSX status bar icon (18px)
Merge pull request #81 from mattiasdh/master

New QTodo logo as proposed in #79
app.py:
+ just sorted imports alphabetically

settings.py:
+ use FileNotFoundError-exception to catch missing user-config

run-test.py, run-coverage.py:
+ some conevniences

task_htmlizer.py, test_htmlizer.py:
+ fixed the regex that finds urls, these can now be the last token
+ fixes #95
propably this is about trailing spaces
an ugly workaround to solve #82.
on Ubuntu it looks okay.
clean-up on file-handling
some test-fixes
Merge branch 'master' of https://github.com/mNantern/QTodoTxt into auto-reload
a working auto-reload implementation on detected file changes
some cleanup
Python 3.2 compatibility concerning changes in the Exceptions-hierarchy
changing the installation-method of pyside to apt-get, since the pip-method doesn't work reliably (and takes a loong time)
forgot to re-activate import after debugging
revert to pip-installation, let's see
Fixes #79 : new QTT logo !
Merge pull request #96 from funkyfuture/py3port

Issue 95
Merge branch 'master' of https://github.com/mNantern/QTodoTxt
Merge PR #99