Add release notes section to UPGRADING document.

[zenhack]

Fixes #865

Note that the 0.3 section is not necessarily complete; I added stuff I could think of off the top of my head, and skimmed the closed issues on the 0.3 milestone (where I didn't find anything that seemed like it needed mentioning).

[coveralls]

Pull Request Test Coverage Report for Build 1802

• 0 of 0 (NaN%) changed or added relevant lines in 0 files are covered.
• 1900 unchanged lines in 35 files lost coverage.
• Overall coverage decreased (-55.6%) to 0.0%

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Files with Coverage Reduction	New Missed Lines	%
hil/flaskapp.py	2	100.0%
hil/commands/util.py	4	80.0%
hil/client/extensions.py	5	100.0%
hil/commands/db.py	5	100.0%
hil/dev_support.py	13	100.0%
hil/class_resolver.py	13	100.0%
hil/commands/migrate_ipmi_info.py	13	37.14%
hil/ext/auth/null.py	13	92.86%
hil/server.py	16	72.73%
hil/network_allocator.py	19	95.0%
<!--	Total:	1900		-->

Totals
Change from base Build 1798:	-55.6%
Covered Lines:	0
Relevant Lines:	2573

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💛 - Coveralls

[naved001]

Some more things that might be useful to put in the changelog.

• All HIL APIs now have client library support.
• Support for maintenance pool.
• Some new APIs
  • Networking actions can now be queried to get their status.
  • List users when using database backend
• Updated APIs
  • List networks now shows public networks to regular users.
• Some switches now support public key authentication. See docs/network-drivers.md for details.

[zenhack]

@naved001, added that list to the doc (with some slight wording changes & added references to docs).

[naved001]

I am happy.

[zenhack]

@naved, fixed.

[naved001]

not sure if we should merge it now, or after the last PR for 0.3 is merged?

[zenhack]

I don't see any reason not to do so now.

Quoting Naved Ansari (2018-04-03 17:47:13)

not sure if we should merge it now, or after the last PR for 0.3 is merged?