Let's start checking PEP8 in Jenkins too

Jenkins is ignoring the following rules:

* E201: whitespace after ‘(‘
* E202: whitespace before ‘)’
* E203: whitespace before ‘:’	 
* E211: whitespace before ‘(‘	 
* E221: multiple spaces before operator
* E222: multiple spaces after operator
* E223: tab before operator
* E224: tab after operator
* E225: missing whitespace around operator
* E226: missing whitespace around arithmetic operator
* E227: missing whitespace around bitwise or shift operator
* E228: missing whitespace around modulo operator
* E501: line too long (82 > 79 characters)

All other issues that pep8 detects in current salt's source are fixed in this pull request.