i2p "country" flag, copied from i2psnark

     and 'b39b4fea1e7adda93fd9f133e4dee4b68b396bab'

     and 'c23784397ad127c4104ab63efdf6aeef65ba31ea'

     and 'dae7240fa5664ac5e65880952c7461cf38e90621'

Most messages will work with or without the Message tail, e.g. SetDateMessage
vs. SetDate. The exception to this is SetMessageMessage, which must be specified
fully.

Command to generate spectags file:
cd i2p2www/pages/site && ctags -f spectags --regex-html=/\"type_\([a-zA-Z0-9]+\)\"/\\1/t,type/ --regex-html=/\"struct_\([a-zA-Z0-9]+\)\"/\\1/s,struct/ --regex-html=/\"msg_\([a-zA-Z]+\)\"/\\1/m,msg/ -R -n docs/spec/*.html

Command to generate the file:
cd i2p2www/pages/site && ctags -f spectags --regex-html=/\"type_\([a-zA-Z0-9]+\)\"/\\1/t,type/ --regex-html=/\"struct_\([a-zA-Z0-9]+\)\"/\\1/s,struct/ -R -n docs/spec/*.html