Merge tag '3.9.1' into develop

3.9.1
tox.ini: Add py34
.travis.yml: Add 3.4
Merge pull request #200 from msabramo/patch-1

tox.ini: Add py34
Merge pull request #201 from msabramo/patch-2

.travis.yml: Add 3.4
Add test for tab character bug
Fix bug 203: bad formatting when tabs exist in import lines
Merge pull request #205 from timothycrosley/feature/fix-issue-203

Feature/fix issue 203
Add test for desired output format
Small fix to placement
Update all tests to assume split on import when possible
Add support for splitting on import
Merge pull request #206 from timothycrosley/feature/fix-issue-204

Feature/fix issue 204
Add a test for custom import placement support
Fix the test to correctly reflect desired output
Add support for custom import placement to isort
Merge pull request #207 from timothycrosley/feature/fix-issue-177

Feature/fix issue 177
Bump release to 3.9.2
Merge branch 'release/3.9.2'