Added new data service tests, separated date parsing/formatting utilities into DateUtil class

Conflicts:

	openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/MITREidDataService_1_0.java
	openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/MITREidDataService_1_X.java
	openid-connect-server/src/main/java/org/mitre/openid/connect/util/DateUtil.java
Better method of creating test AuthenticationHolderEntity, added some more testing to testImport/ExportGrants
Conflicts:

	openid-connect-server/src/test/java/org/mitre/openid/connect/service/impl/TestMITREidDataService_1_1.java
adding netbeans config to gitignore
Added tests for ensuring the references between a refresh token and its authentication holder are preserved over import. Minor cleanup of other tests.
RefreshToken to AuthHolder linkage test now using AuthHolder ID to verify
fix broken dependency declaration, that follow up to org.springframework.beans.NotWritablePropertyException: Invalid property 'jwkKeyList' of bean class exception