Fixes #419.

Signed-off-by: JoeLametta <[email protected]>

(To make versioning work properly for the develop branch, since
currently the v0.8.0 tag only exists in the master branch. This merge
will pull the v0.8.0 tagged commit into the develop branch too.)

Signed-off-by: JoeLametta <[email protected]>

Remove configuration files of unused probot apps too.

Signed-off-by: JoeLametta <[email protected]>

Given the imminent end-of-life for Python 2, I didn't bother making the
codebase compatible with both.

Signed-off-by: Drew DeVault <[email protected]>

Signed-off-by: JoeLametta <[email protected]>

Accuraterip-checksum extension will be Python 3 only (JoeLametta).

Co-authored-by: JoeLametta <[email protected]>
Signed-off-by: Andreas Oberritter <[email protected]>
Signed-off-by: JoeLametta <[email protected]>

- Removed unused code not portable due to buffer() use
- raw_input() does not exist in Python 3
- Fixed octal constant syntax for Python 3
- Fixed TypeError
- Replace if not exists: makedirs(path) with single call: using makedirs(path, exist_ok=True)
- Class inherits from object, can be safely removed from bases in python3: pylint's useless-object-inheritance (W0235) check

Signed-off-by: JoeLametta <[email protected]>

More details about the fix to the testDuration failure (regression):

```
FAIL: testDuration (whipper.test.test_image_toc.CapitalMergeTestCase)
testDuration
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/twisted/internet/defer.py", line 151, in maybeDeferred
    result = f(*args, **kw)
  File "/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/twisted/internet/utils.py", line 221, in runWithWarningsSuppressed
    reraise(exc_info[1], exc_info[2])
  File "/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/twisted/python/compat.py", line 464, in reraise
    raise exception.with_traceback(traceback)
  File "/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/twisted/internet/utils.py", line 217, in runWithWarningsSuppressed
    result = f(*a, **kw)
  File "/home/travis/build/whipper-team/whipper/whipper/test/test_image_toc.py", line 271, in testDuration
    self.assertEqual(self.table.getFrameLength(), 173530)
  File "/home/travis/virtualenv/python3.5.6/lib/python3.5/site-packages/twisted/trial/_synctest.py", line 432, in assertEqual
    super(_Assertions, self).assertEqual(first, second, msg)
  File "/opt/python/3.5.6/lib/python3.5/unittest/case.py", line 829, in assertEqual
    assertion_func(first, second, msg=msg)
  File "/opt/python/3.5.6/lib/python3.5/unittest/case.py", line 822, in _baseAssertEqual
    raise self.failureException(msg)
twisted.trial.unittest.FailTest: 184930 != 173530
```

The test fails because if either nextTrack.session or thisTrack.session are None the if is false and the instructions inside it aren't executed. The check for None is needed because Python 3 doesn't allow NoneType comparisons (in Python 2 that was possible).
IIRC correctly in that test nextTrack.session has value 2 while thisTrack.session is None. That means the Python 2 version evaluates the if condition to true, while the Python 3 version in the first commit does not.
With this change both of the values of nextTrack.session and thisTrack.session are compared as int (if None, the value 1 is used for the comparison - as in disc session 1).

Regression introduced in 64dd9d8.

Signed-off-by: JoeLametta <[email protected]>

Signed-off-by: JoeLametta <[email protected]>

I've also changed the output format a bit.

Signed-off-by: JoeLametta <[email protected]>

Signed-off-by: JoeLametta <[email protected]>

Python 3 port

From now on whipper's codebase will be compatible only with Python 3.
NOTE: This pull request introduces a regression: more details in #424.

Special thanks to @ddevault for kickstarting the porting effort!

- Removed useless apt cache from layer 3
- Avoid installing apt recommended packages

The compressed image now weights 67 MB less (≈ -30% size).

Signed-off-by: JoeLametta <[email protected]>

Fixes #424.

Signed-off-by: JoeLametta <[email protected]>

Initial work by ArchangeGabriel: #421

Fixes #420.

Signed-off-by: JoeLametta <[email protected]>

Every line, except the last one, of the output was missing a double quote character at the end.

Additional changes:
- Specify parser to avoid BeautifulSoup warning
- Use single quotes only

Signed-off-by: JoeLametta <[email protected]>

Signed-off-by: JoeLametta <[email protected]>