Merge pull request #4 from dro123/fixes

Fixes
Merge pull request #5 from dro123/newfeatures

Add some new features
Add hint content in the <a>'s title property.
Add the title property in the driver cells too.
Clean the output.

Removed the write functions in the classes to have a proper inline ouput
at the end of the PHP file.
Remove the <p> for the footnotes.
Fix the reference to a temporary array error.
Fix another reference to a temporary array error.

I don't have them woth my local PHP settings.
Add a space between the para character and the text.
Add Tobias Droste to the authors list

Signed-off-by: Tobias Droste <tdroste@gmx.de>