Переименование шаблонов email

Переименовываем шаблоны email для возможности их нормальной локализации через Crowdin.

library/language/en/email/user_activate_passwd.html

@@ -0,0 +1,18 @@
+Subject: New password activation
+Charset: UTF-8
+
+Hello {USERNAME}
+
+You are receiving this email because you have (or someone pretending to be you has) requested a new password be sent for your account on {SITENAME}. If you did not request this email then please ignore it, if you keep receiving it please contact the board administrator.
+
+To use the new password you need to activate it. To do this click the link provided below.
+
+{U_ACTIVATE}
+
+If sucessful you will be able to login using the following password:
+
+Password: {PASSWORD}
+
+You can of course change this password yourself via the profile page. If you have any difficulties please contact the board administrator.
+
+{EMAIL_SIG}