Included .htaccess and .htapasswd for safety.
Merge pull request #38 from kolobus/master

Ignore .htaccess and .htpasswd for safety
Incorrect structure

The structure for robots.txt is incorrect for some/most search engines.
Merge pull request #39 from ic0nic/master

Incorrect structure
XSS flaw correction

With a client IE < 10 there was a XSS security flaw. Other browsers were
not affected.
Also corrected spacing display with IE<10.
Update index.php

Removed ugly error message when paste identifier is invalid (eg. http://mydomain.com/zerobin?foo)
Potentiel security bug corrected

Bug reproduction: 1) paste texte containing html/javascript. 2) send 3)
clic "Raw text"  4) refresh: The html/javascript is interpreted instead
of just displayed.
Under some versions of Chrome, it happens without refreshing.
This bug was corrected.