* updated polish locale (translation) on install

* fixed hidding shop system menu on tibiacom template when disabled in
config
* some changes to sample characters: chanced town_id to 1, posx: 1000,
posy: 1000, posz: 1000 and default group_id to 1 so you can change
in-game outfits and they will be used
* fixed account.login redirect not working on tibiacom template
* installation: warn about wrong admin account name/id and password
* (internal) removed some duplicated code on install finish
* (internal) renamed installation step files to be in correct order
* added TODO file
* bumped version to 0.7.3

templates/tibiacom/account.login.html.twig

@@ -1,4 +1,7 @@
 <form action="{{ getLink('account/manage') }}" method="post" style="margin: 0px; padding: 0px;">
+	{% if redirect is not null %}
+		<input type="hidden" name="redirect" value="{{ redirect }}" />
+	{% endif %}
 	<div class="TableContainer" >
 		<table class="Table4" cellpadding="0" cellspacing="0" >
 			<div class="CaptionContainer" >