Added schedule section
added train schedule informations
added direct conference schedule link
Added credits for kjellski
Corrected Typos spotted by Uliwitness
Added: Hint about power chords without needing an adapter.
Typo corrected
Added: knitting stuff and credits for anked
Added SSHuttle to tunneling solutions suggested by badboy
Added Ukulele and electronic tuner suggested by @nic_ko
Initial 30C3 changes

according to information found at
https://events.ccc.de/congress/2013/wiki/Static:Safety_and_Security
Merge github:schwindp/CongressChecklist for 30C3.
Pull requests are welcome
Less negations for easier reading, though more sophisticated vocabulary used.
Backup ALL your devices
Encrypt your Bitcoin wallets
Corrected a typo
Another typo corrected
Improved generic medication section with more product names for non-german speaking attendees.
Corrected even more typos. This is becoming embarrassing.