added checks in theme preprocessor for missing dc
added checks for missing dc datastream
fixed a fieldset name in add datastream form
updated dc_array's default value
Code Review
Allow for altering of forms in the stepped ingest process.
Merge pull request #289 from nigelgbanks/7.x-code-review

7.x code review
Merge pull request #290 from adam-vessey/7.x

Allow for altering of forms in the stepped ingest process.