Usufy: v1.1.0 - New functionality added: substituting '_' and '.'.

Iterating on the list of nicks to find '.' or "_" and replace them according to:
	if '.' in n:
		adding n.replace('.', '_')
		adding n.replace('.', '')
	if '_' in n:
		adding n.replace('_', '.')
		adding n.replace('_', '')
This will help with identifying new accounts.