Merge pull request #1 from Beko-Kaeuferportal/226-ruby1.9

226 ruby1.9
allow to sync empty fields

Previously we skipped all empty fields because of 
a possible datetime conversion. Now we only skip the datetime 
conversion.
Merge branch 'master' of github.com:Beko-Kaeuferportal/s_object into kp-master
Revert "allow to sync empty fields"

This reverts commit c5d25c25dd596b30de5cb16ef4d5c1bc79a58bc5.
Merge pull request #7 from Beko-Kaeuferportal/kp-master

Kp master