i2pd: Update to 2.28.0

Signed-off-by: David Yang <mmyangfl@gmail.com>

net/i2pd/files/i2pd.config

@@ -1,15 +1,18 @@
 config i2pd
-	# Set where i2pd should store its data (netDB, certificates, addresses, etc)
-	# By default we store it in RAM so no data is written to ROM.
-	# IMPORTANT!
-	# Data is consistently rewritten. DO NOT POINT IT TO INNER ROM. Flash will
-	# die.
+	# Set where i2pd should store its data (netDB, certificates, addresses,
+	# etc). By default we store it in RAM so no data is written to ROM.
+	# If you store data permanently, you may want to enable
+	# 'profiles = true' and 'addressbook = true' in i2pd.conf
+	#### IMPORTANT! ####
+	# Data is consistently rewritten. DO NOT POINT IT TO INNER ROM. Flash
+	# will die.
 	option data_dir '/var/lib/i2pd'
 
-	# If you don't store i2pd data permanently, you can still choose to store only
-	# addressbook. If not, i2pd will be forced to do HTTP reseeding reseeding on
-	# every start. Storing addressbook may be useful if HTTP reseeding is not
-	# possible or blocked (by censorship).
-	# Even addressbook doesn't take up too much space, extroot is still strongly
-	# recommended to avoid flash wear-out.
+	# If you don't store i2pd data permanently, you can still choose to
+	# store only addressbooks. If not, i2pd will be forced to do HTTP
+	# reseeding on every start. Storing addressbook may be useful
+	# if HTTP reseeding is not possible or blocked (by censorship).
+	# Even addressbook doesn't take up too much space, extroot is still
+	# strongly recommended to avoid flash wear-out.
+	# Enable 'addressbook = true' in i2pd.conf to make it take effect.
 	#option addressbook_dir '/etc/i2pd/addressbook'