snglcoinc.CoincRates: remove stone-throwing code, require scipy 0.19

- set minimum required scipy version at 0.19 for lalburst
- remove CoincRates stone-throwing code from .__init__() and require scipy's wrapping of qhull's half-space intersection.
- also rewrite the documentation
39 jobs for lalburst_scipy_0_19 in 90 minutes and 2 seconds (queued for 11 seconds)
latest
Name Stage Failure
failed
lalburst:rpm Lal Burst
WARNING: rpmbuild/RPMS/x86_64/python*-lalburst-*.rpm: no matching files 
WARNING: rpmbuild/BUILD/**/config.log: no matching files
WARNING: rpmbuild/BUILD/**/test-suite.log: no matching files
ERROR: No files to upload
Uploading artifacts...
WARNING: rpmbuild/BUILD/**/*junit*.xml: no matching files
ERROR: No files to upload
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
top-level Integration Tests
make[1]: Leaving directory `/builds/kipp.cannon/lalsuite/lalsuite-7.1.1/_build'
make: *** [distcheck] Error 1
Uploading artifacts for failed job
Uploading artifacts...
config.log: found 1 matching files and directories

Makefile: found 1 matching files and directories

Uploading artifacts as "archive" to coordinator... ok
id=1682013 responseStatus=201 Created token=oW1mv6mo
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1