XSieve 1.1.0 is released

XSieve 1.1.0 is the second public release. It mostly fixes misfeatures of the previous version. More precisely:

* No need for special Guile version. Lazy tree instantiation is switched off by default.
* Documentation and examples are now installed to /usr/share/doc/xsieve-X.X.X
* Performance and documentation improvements.
* Bug fixes, misfeature corrections.