Activate coala checking of comit messages

Almost exact copy from current Integration/Test.

Change-Id: Ibfcf7b102b85951e42836a49874a85d80acd8159
Signed-off-by: Vratko Polak <[email protected]>

Author: vrpolakatcisco

.coafile

@@ -0,0 +1,13 @@
+[GitCommit]
+bears = GitCommitBear
+ignore_length_regex = Signed-off-by,
+    Also-by,
+    Co-authored-by,
+    http://,
+    https://
+
+[Python]
+bears = PEP8Bear
+files = **/*.py
+ignore = .*/**
+max_line_length = 120

tox.ini

@@ -1,18 +1,25 @@
 [tox]
 minversion = 1.6.0
-envlist = pep8
+envlist = pep8,coala
 skipsdist = true
 
+[testenv:coala]
+basepython = python3
+deps =
+    coala
+    coala-bears
+commands =
+    python3 -m nltk.downloader punkt maxent_treebank_pos_tagger averaged_perceptron_tagger
+    coala --non-interactive
+
 [testenv:pep8]
 deps =
     flake8
-    pep8==1.7.0
 commands = flake8
 
 [flake8]
 show-source = True
 max-line-length = 120
-
 # - Select E121, E123, E126, E226, E241, E242 and E704 which are turned OFF
 #   by default but represent guidelines accepted by us.
 # - Do not select E133 because it is incompatible with E123 which was
@@ -22,3 +29,7 @@ max-line-length = 120
 #   that (select E133 instead of E123) but that should be caught by the
 #   verify job.
 select = E,W
+exclude =
+    .git,
+    .tox,
+    docs/conf.py