README:  PIL -> Pillow
add ability to upload a custom logo for a domain (Case:66437)
redirect after settings update so logo changes take immediate effect
enable domain-specific logo on domain login page
Allow reminder definitions to reference parent case properties
fix incorrect keys for call center indicators
improve test case
add reportfixtures app to settings
Merge branch 'master' into tiered-select

Conflicts:
	corehq/apps/app_manager/tests/test_suite.py

I was expecting this conflict, as I'd added tests for multi-sort
but had done some refactoring for the test file on this feature branch
fix discrepecies in test related to recent fixes to enable_multi_sort that made it work during tests

these changes are largely unrelated to tiered-select
Clean sms message before sending
Merge pull request #759 from dimagi/tiered-select

Tiered select
fix default sort on 2.2+
fix tests (sorting was fixed while tiered-sort tests were written on another branch)
Use new parent property
Merge pull request #854 from dimagi/cc_indicator_fix

fix incorrect keys for call center indicators
udpate submodule refs
add util for validating suites for builds in a given date range
Merge pull request #865 from dimagi/validate_suite

add util for validating suites for builds in a given date range
Small fix