set min-height of susidns iframe to the height of the browser's viewport, and automatically show the howitworks section on the susidns homepage. Gets rid of the double-scrollbar on the iframe

See http://i2p-projekt.i2p/en/docs/api/samv3 for maintained list of v3 clients
Remove unmaintained v3.0 protocol doc, link to website instead

Fixes for reproducible Gradle build

See merge request i2p-hackers/i2p.i2p!32

reproducible builds with Gradle

See merge request i2p-hackers/i2p.i2p!30

Don't show both ban and unban buttons if peer param provided
Don't put hash in form again after ban/unban POST

Remove all the remaining mtn stuff from the mavenCentral target dependencies since it's no longer transitionally needed

Docker cleanup and documentation

See merge request i2p-hackers/i2p.i2p!29

More Docker changes

See merge request i2p-hackers/i2p.i2p!28

* disable in-network updates
* persistent directory for snark downloads
* listen on port 12345 for i2np connections
* restore multi-stage build
* use better ant target
* allow passing -Xmx via the JVM_XMX variable

Many thanks to LoveIsGrief for the suggestions!

Only check for clients.config if there was no clients.config.d

Docker persistent home

See merge request i2p-hackers/i2p.i2p!27

Remove old Main-Class from manifest
Add Class-Path to manifest