cspace-789 partial search on account. query parameters are sn for screenname, uid...

cspace-789 partial search on account. query parameters are sn for screenname, uid for userid, email for email. query parameters could be ANDed. AccountJpaFilter has where clause
test: added search tests on account

M    services/common/src/main/java/org/collectionspace/services/common/storage/jpa/JpaStorageClient.java
M    services/common/src/main/java/org/collectionspace/services/common/document/DocumentFilter.java
M    services/account/service/src/main/java/org/collectionspace/services/account/storage/AccountStorageClient.java
M    services/account/service/src/main/java/org/collectionspace/services/account/storage/AccountDocumentHandler.java
A    services/account/service/src/main/java/org/collectionspace/services/account/storage/AccountJpaFilter.java
A    services/account/service/src/main/java/org/collectionspace/services/account/storage/AccountStorageConstants.java
M    services/account/client/src/test/java/org/collectionspace/services/account/client/test/AccountServiceTest.java
M    services/account/client/src/main/java/org/collectionspace/services/client/AccountClient.java
M    services/account/client/src/main/java/org/collectionspace/services/client/AccountProxy.java
_M   services/organization/client