update regex for matching URLs, fixes issue #1386
issue #1386

* regex for matching URLs was rewritten
* added unittests
Fixed Testing docs section
Merge pull request #1412 from amatellanes/master

Fixed Testing docs section
change regex back, issue #1386
(I hope) tests are fixed, issue #1386
wrapper for smart_urlquote, issue #1386
Merge pull request #1397 from amezhenin/issue_1386

update regex for matching URLs, fixes issue #1386
credit, issue #1386, PR #1897
credit, issue #1386, PR #1397
Merge remote-tracking branch 'origin/issue_1386' into issue_1386
Merge pull request #1417 from amezhenin/issue_1386

Add myself into credits.md
Update credits
Minor typos fixed in api-guide/testing.md (request -> response).
Merge pull request #1418 from ze-phyr-us/docs-api-testing-typo-fix

Minor typos fixed in api-guide/testing.md (request -> response).
Update throttling.md

Added comma to make DEFAULT_THROTTLE_CLASSES a tuple in example, for copy&paste to work nicely.
Merge pull request #1420 from bo-peng/patch-1

Update throttling.md
Refactor UpdateModelMixin.update

Reduce nesting, return early in error cases.
Remove unnecessary else
Merge pull request #1427 from Ian-Foote/refactor_update

Refactor UpdateModelMixin.update