[aur-general] Package merge

[stefan-husmann at t-online.de]

Hello, 

I merged elisa-base and elisa-plugins to a new package named elisa. The
reason for doing so is that not only elisa-plugins depend on elisa-base,
but also vice versa. I also deleted twisted-web2, because it is a double
of the twisted pckage in [extra] now.

Regards Stefan