Added missing requirement

Author: Francisco Marques

requirements.txt

@@ -1 +1,2 @@
 docopt>=0.6.2
+html>=1.6

setup.py

@@ -20,7 +20,8 @@
 packages = ['ts3LogAnalyzer'],
 package_data = {'ts3LogAnalyzer': ['schema.sql']},
 zip_safe = False,
-install_requires = ['docopt>=0.6.2'],
+install_requires = ['docopt>=0.6.2', 'html>=1.6'],
+ keywords='teamspeak ts3 ts3server ts',
 entry_points =
 """
  [console_scripts]