Metacat

use Data Manager Library to parse EML when needed in DataONE classes.
(augmented DML to parse data format elements in EML to estimate MIME type)
https://redmine.dataone.org/issues/1634

Merged in the D1_0_6_2_BRANCH changes that include the transition from ObjectFormat calls to ObjectFormatCache calls.

transfer full System Metadata (as XML) during document and data replication

Modified Metacat to build against the D1_SCHEMA_0_6_1 branch of the dataone schemas by incorporating the 0.6.1-SNAPSHOT version of d1_common and d1_libclient libraries, and refactoring Metacat code references to the d1 schema changed types.

In order to sync up with DataONE 0.6.1 changes, I'm backing out ObjectFormatService changes temporarily in Metacat. Most functionality will be rolled back in using the DataONE 0.6.2 tag, but some methods in ObjectFormatService (such as getListFromDisk()) will be moved into d1_libclient_java.

Changes in the DataONE ObjectFormat class deprecate the convert() method, and we're now using Metacat's ObjectFormatService to look up object format attributes. The following changes replace ObjectFormat.convert() with ObjectFormatService.getFormat() in several classes....

zero padded date string in DocumentUtil.generateDocumentId() for readability

Add in correct node references in system metadata.

remove httpclient 3.1 and custom-built httpclient.jar
rework MetacatClient (and other classes) to use httpclient 4
updated build to not create httpclient.jar
encoding tests now pass.

some new code for debugging mmp