Missing attributes in content and jsav xblocks initialization xml markups

[hosamshahin]

In content xblock xml below you are missing next_name, prev_name
<content content_type="topnav" long_name="OpenDSA Navigation Bar" next_link="../../Appendix/Glossary" prev_link="../../Sorting/Table of Contents" toc_link="../../Table_of_Contents/Table_of_Contents" xblock-family="xblock.v1"/>

And in jsav xblock xml below you are missing problem_type which has one of the three values pe, ss, av
<jsav JOP_lang="en" JXOP_code="none" JXOP_feedback="" JXOP_fixmode="" display_name="Quicksort Visualization" js_resources="" long_name="Quicksort Visualization" points="0" problem_height="450" problem_url="/AV/Sorting/" problem_width="950" required="False" short_name="quicksortAV" showhide="none" threshold="1.0" url_name="quicksortAV" xblock-family="xblock.v1"/>