Remove solr/server directory from this repo

[cmungall]

We have solr/server/solr/amigo/conf/managed-schema in this repo

And also a schema here:
https://github.com/geneontology/amigo/tree/master/golr/solr/conf

I don't know why Jeremy checked in the solr folder in the bbop-manager-golr repo, it seems totally out of place. I suggest deleting the whole solr folder here.

The proper place for the amigo schema is in the amigo repo

[cmungall]

After discussion with @kltm we will leave for future testing purposes, #8 adds a README that explains this

[cmungall]

It turns out there are functional tests Jeremy wrote:

https://github.com/berkeleybop/bbop-manager-golr/blob/master/gulpfile.js

These appear to do the full cycle of setting up a solr instance, loading it (both monarch and go loads) and testing

However, this is all likely stale. For testing purposes we should just use a standard image

[kltm]

Playing with it, [the mechanism] seems to work quite well and attempts to do as advertised on the box--test bbop-golr-manager with something other than theory.

That said, it does indeed no longer work, failing on the ontology load it has apparently. Which is odd considering the data is local...

2018-02-15 16:14:47,351 ERROR (GafCommandRunner:964) Unsatisfiable: GO:0035052 'dorsal vessel aortic cell fate commitment'
2018-02-15 16:14:47,351 INFO  (GafCommandRunner:966) Creating module for unsatisfiable classes in file: null
Exception in thread "main" java.lang.NullPointerException
	at java.io.File.<init>(File.java:277)
	at owltools.cli.GafCommandRunner.preCheckOntology(GafCommandRunner.java:974)
	at owltools.cli.SolrCommandRunner.flexLoadOntologySolr(SolrCommandRunner.java:255)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at owltools.cli.CommandRunner.runSingleIteration(CommandRunner.java:4054)
	at owltools.cli.CommandRunnerBase.run(CommandRunnerBase.java:76)
	at owltools.cli.CommandRunnerBase.run(CommandRunnerBase.java:68)
	at owltools.cli.CommandLineInterface.main(CommandLineInterface.java:12)

from internal command:

java -Xms1024M -DentityExpansionLimit=4086000 -Djava.awt.headless=true -Xmx4G -jar ./java/lib/owltools-runner-all.jar _data/ontologies/go-gaf.owl _data/ontologies/eco.owl _data/ontologies/go-taxon-subsets.owl _data/ontologies/neurogenesis.obo --merge-support-ontologies --remove-subset-entities upperlevel --silence-elk --reasoner elk --solr-taxon-subset-name amigo_grouping_subset --solr-eco-subset-name go_groupings --solr-url http://localhost:8983/solr/amigo --solr-config _data/metadata/ont-config.yaml --solr-log /tmp/golr-load.log --solr-load-ontology --solr-load-ontology-general