Add addressbook.subscriptions option + delete default subscription constant + improved docs

docs/configuration.md

@@ -74,6 +74,7 @@ All options below still possible in cmdline, but better write it in config file:
 * --precomputation.elgamal=  - Use ElGamal precomputated tables. false for x64 and true for other platforms by default  
 * --reseed.file         - Full path to SU3 file to reseed from  
 * --reseed.urls         - Reseed URLs, separated by comma
+* --addressbook.subscriptions         - AddressBook subscriptions URLs, separated by comma
 
 * --limits.transittunnels=  - Override maximum number of transit tunnels. 2500 by default   
 

docs/i2pd.conf

@@ -92,8 +92,16 @@ ipv6 = false
 # name = I2Pd
 
 [reseed]
-## Path to reseed .su3 file (if )
-# file = 
+## URLs to request reseed data from, separated by comma
+## Default: "mainline" I2P Network reseeds
+# urls = https://reseed.i2p-projekt.de/,https://i2p.mooo.com/netDb/,https://netdb.i2p2.no/
+## Path to reseed data file (.su3) for manual reseeding 
+# file = /path/to/i2pseeds.su3
+
+[addressbook]
+## AddressBook subscriptions URLs, separated by comma
+## Default: inr.i2p at "mainline" I2P Network
+# subscriptions = http://joajgazyztfssty4w2on5oaqksz6tqoxbduy553y34mf4byv6gpq.b32.i2p/export/alive-hosts.txt
 
 [http]
 ## Uncomment and set to 'false' to disable Web Console

docs/index.rst

@@ -32,7 +32,9 @@ Contents:
    build_requirements
    build_notes_unix
    build_notes_windows
+   build_notes_cross
    build_notes_android
+   build_notes_ios
    configuration
    family
    usage