CSPACE-597 added setProxy method to VocabClient to pick up httpclient with props...

CSPACE-597 added setProxy method to VocabClient to pick up httpclient with props set for authentication. Properties required to pass to run in auth mode are -Dcspace.auth=true -Dcspace.user=test -Dcspace.password=test (see services/trunk/services/client/src/main/resources/collectionspace-client.properties)
Added log4j.properties. Removed programmatic configuration of log4j.
test: import, vocab client

M    vocabulary/import/src/main/java/org/collectionspace/services/vocabulary/importer/VocabularyBaseImport.java
A    vocabulary/import/src/main/resources/log4j.properties
M    vocabulary/import/pom.xml
M    vocabulary/client/src/main/java/org/collectionspace/services/client/VocabularyClient.java