Mooring Fixes and Text Changes

[xzzy]

This change is 

[coveralls]

Pull Request Test Coverage Report for Build 510

• 0 of 97 (0.0%) changed or added relevant lines in 9 files are covered.
• 5 unchanged lines in 4 files lost coverage.
• Overall coverage decreased (-0.1%) to 39.594%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
ledger/payments/utils.py	0	1	0.0%
mooring/settings.py	0	1	0.0%
mooring/wsgi.py	0	1	0.0%
mooring/serialisers.py	0	2	0.0%
mooring/api.py	0	3	0.0%
mooring/models.py	0	6	0.0%
mooring/migrations/0037_auto_20180814_1433.py	0	7	0.0%
mooring/admin.py	0	8	0.0%
mooring/utils.py	0	68	0.0%

Files with Coverage Reduction	New Missed Lines	%
parkstay/models.py	1	54.34%
ledger/payments/bpay/crn.py	1	55.22%
mooring/admin.py	1	0.0%
mooring/utils.py	2	0.0%

Totals
Change from base Build 507:	-0.1%
Covered Lines:	11456
Relevant Lines:	28934

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💛 - Coveralls

[dbca-asi]

Reviewed 3 of 17 files at r1, 3 of 9 files at r2.
Reviewable status: 6 of 23 files reviewed, all discussions resolved