Added testnet command and localnet targets

Finished testnet command and introduced localnet targets in Makefile, together with gaiadnode Docker image

Fixed function parameter list - now starts with ctx

Separated GenTxConfig into a server/config package so both the server package and the mock package can use it

Adding server/config to app package

gaiadnode Docker image

Separated GenTxConfig into a server/config package so both the server package and the mock package can use it

Adding server/config to app package

Fixes requested by Rigel

Removed commented code

Global flag fixes

server/config/config.go

@@ -0,0 +1,14 @@
+package config
+
+//_____________________________________________________________________
+
+// Configuration structure for command functions that share configuration.
+// For example: init, init gen-tx and testnet commands need similar input and run the same code
+
+// Storage for init gen-tx command input parameters
+type GenTxConfig struct {
+	Name      string
+	CliRoot   string
+	Overwrite bool
+	IP        string
+}