Merge branch 'mcuelenaere-nano-support'

Author: ognus

README.md

@@ -67,6 +67,7 @@ npm install wallet-address-validator
 * Monero/XMR, `'monero'` or `'XMR'`
 
 * Namecoin/NMC, `'namecoin'` or `'NMC'`
+* Nano/NANO, `'nano'` or `'NANO'`
 * NEO/NEO, `'NEO'` or `'NEO'`
 * NeoGas/GAS, `'neogas'` or `'GAS'`
 
@@ -76,6 +77,7 @@ npm install wallet-address-validator
 
 * Qtum/QTUM, `'qtum'` or `'QTUM'`
 
+* Raiblocks/XRB, `'raiblocks'` or `'XRB'`
 * Ripple/XRP, `'ripple'` or `'XRP'`
 
 * Snowgem/SNG, `'snowgem'` or `'SNG'`