Merge pull request #218 from remear/master

Add contributors file
Fixed search so its less fragile
Merge pull request #219 from balanced/fix-search

Fixed search so its less fragile
Pinned balanced python client
Add section for Customer identity verification
Add section describing hash attribute
Make refund timeline a note
Merge pull request #220 from remear/identity-verification

Add section for Customer identity verification
Merge pull request #221 from remear/hash-attr

Add section describing hash attribute
Merge pull request #222 from remear/refund-timeline

Make refund timeline a note
Add delete a customer section
Update client submodule revisions
Ignore scenario.cache
Merge pull request #225 from remear/customer-delete

Add delete a customer section
Use cURL delete template
Fix newline issue in cURL scenarios. Thanks Mahmoud.
Merge pull request #231 from remear/customer-delete

Use cURL delete template
Merge pull request #230 from remear/fix-curl-newline

Fix newline issue in cURL scenarios. Thanks Mahmoud.
Allow the use of mirrors for pip