Wildlifecompliance merge back to master for initial release

[wilsonc86]

gitignore, new manage_wc.py file and minor change to requirements
some ledger changes, needs to be reviewed
wildlifelicensing enter_return.html file was not changed, just looks like whitespace
new system to be deployed separately but against the same existing database as other systems in the ledger ecosystem

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This change is 

[coveralls]

Pull Request Test Coverage Report for Build 668

• 31 of 8045 (0.39%) changed or added relevant lines in 199 files are covered.
• 8 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-7.1%) to 28.786%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
wildlifecompliance/components/applications/init.py	0	1	0.0%
wildlifecompliance/components/organisations/init.py	0	1	0.0%
wildlifecompliance/tests.py	0	1	0.0%
wildlifecompliance/models.py	0	2	0.0%
wildlifecompliance/apps.py	0	4	0.0%
wildlifecompliance/admin.py	0	5	0.0%
wildlifecompliance/migrations/0002_auto_20180216_1400.py	0	5	0.0%
wildlifecompliance/migrations/0002_auto_20180223_1127.py	0	5	0.0%
wildlifecompliance/migrations/0003_auto_20180219_1221.py	0	5	0.0%
wildlifecompliance/migrations/0004_auto_20180220_1008.py	0	5	0.0%

Files with Coverage Reduction	New Missed Lines	%
ledger/checkout/views.py	1	48.42%
mooring/pdf.py	1	0.0%
ledger/payments/bpay/crn.py	1	55.22%
parkstay/models.py	2	54.53%
mooring/models.py	3	0.0%

Totals
Change from base Build 661:	-7.1%
Covered Lines:	11534
Relevant Lines:	40068

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💛 - Coveralls