by doing form processing even if book is empty.
Do all form processing before displays so the
displays reflect any form add/delete.
Broken in 0.9.50 when form processing call was moved.
Hide replace and add alternate buttons if book is empty.
Ref: https://www.reddit.com/r/i2p/comments/wu7nac/how_do_i_add_to_the_private_address_book/

Check for deadlock more frequently

when in portable configuration and changing the
launch browser on startup setting on /configservice
ref: http://zzz.i2p/topics/3347

not simply when a new file is downloaded

Caused SusiDNS and addressbook to be in a different context
addressbook config would be stored in base dir
and subscriptions would not load because it couldn't find i2ptunnel

cancel DHT cleaner and explorer on stop

Don't do soft restart if full restart required

Clean up language selection code in ResourceHelper

Fallback to Ed25519 on error

make SAMException class public so that it can easily be used by SAM implementers/embedders. Looks like it should have been public, all the constructors are public but the public keyword is missing on the class itself. Make tabs and spacing consistent in that file.

and causing tracker error on initial announce

to avoid conflict in applications linking to apache jars
As requested by 'mesh' project
Remove with-libhttpclient-java build option
No known external uses other than obsolete i2pcontrol plugin