as per request from Dele Olajide

OF-853: XEP-0077 Registration must return <not-acceptable/> if username ...

OF-853: XEP-0077 Registration must return <not-acceptable/> if username or password are unspecified.

OF-189: Remove com.sun.* imports

encryption configuration attributes issue

https://community.igniterealtime.org/thread/53888

Adding verify the installation configuration change encryption and
secret key encryption.
If there are changes then use the old encryption secret key to decrypt
the original configuration.
With a new encrypted and the encrypted secret key.

I think OF-825 problem has been repaired.

OF-837 PubSub should return non-persistent items (last published item)

Also includes a housekeeping item to remove the pack200task.jar (from
OF-560)

Rename 'default_access_model' to 'access' as per XEP-0060 § 10. Feature ...

OF-560: Remove pack200 decompression on startup

OF-560: Remove pack200 during build.

default_access_model is nowhere specified in XEP-0060.

OF-250: Allow to configure the groups of a user from the user profile

OF-421: Update to latest MINA release

OF-189: Revert addition of PolicyUtils.java

OF-850: Improve default initialization state

Minor changes to system utility classes to improve initial state of the
system, particularly during unit testing.

Pick the latest bug fixes from Apache MINA 2.0,9

See Jira ticket for license concerns

Update Chinese International Support

OF-324: Offline Email Notification Plugin uses old NS

OF-324 Offline Email Notification Plugin

Update CertificateManager.java 

	Add the missing international property key, translate some Chinese content, and enhance Chinese support

		org.jivesoftware.util.CertificateManager - Error decoding subjectAltName
		java.lang.ClassCastException: org.bouncycastle.asn1.DERTaggedObject
		cannot be cast to org.bouncycastle.asn1.ASN1Sequence

OF-179: Minor text changes for UI console

Use consistent labels for menu and page header

Incorporating community feedback

OF-179: Publish presence updates for group changes

Distribute updated presence packets after changing MUC room affiliations
due to group membership changes

OF-179: Add group features for MUC administration

unsupported plugin provided by Nicholas Mossie

* simplified the UI
* added search for groups
* pagination for available groups

Introduces MUC group affiliation feature; allow users to join rooms
based
on group membership; distribute presence updates for MUC affiliation
changes due to group membership events.

OF-847: Bouncycastle 1.51 for JitsiVideobridge

OF-250: Allow to configure the groups of a user from the user profile