Fixes:
	1. email sending to the clients
	2. issue with the sessionID cookie when java.net.HttpURLConnection was used

Maybe problems in the future:

	1. Spring Security with URLConnection in controller, and manual SessionID instantiation.
	2. e-mail CSS compatibility with different email clients

TODO:
	
	1. send e-mail on Authenticated User mailbox
	2. logging of email sending 
	3. refactoring
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