Merge pull request #9 from bjoern-esser/master

new Version 1.0.2
Added YWidgetExtensionFactory and YWE to manage widget extensions from new libyui
Fixed accordingly new yui external widget management
Merge pull request #10 from anaselli/master

Added YExternalWidgetFactory and YExternalWidget to bindings to be aligned to libyui
bumped release
Merge remote-tracking branch 'upstream/master'
Updated Changelog
Merge pull request #11 from anaselli/master

release bumped for YExternalWidgets
According http://www.swig.org/Doc1.3/Perl5.html#Perl5_nn18 to get
casts and iterator incrementer
Updated changelog and version
Merge pull request #12 from anaselli/master

casts and Iterators incrememt