Code style fixes to match the Magento coding standard

app/code/community/OpenTools/Ordernumber/Block/Counters.php

...de/community/OpenTools/Ordernumber/Block/Replacements.php

app/code/community/OpenTools/Ordernumber/Helper/Data.php

...ommunity/OpenTools/Ordernumber/Model/Backend/Counters.php

...nity/OpenTools/Ordernumber/Model/Backend/Replacements.php

app/code/community/OpenTools/Ordernumber/Model/Observer.php

...ode/community/OpenTools/Ordernumber/Model/Ordernumber.php

...nity/OpenTools/Ordernumber/Model/Resource/Ordernumber.php

...ols/Ordernumber/Model/Resource/Ordernumber/Collection.php

...de/community/OpenTools/Ordernumber/Model/Source/Reset.php

...rnumber/sql/opentools_ordernumber_setup/install-0.1.0.php

var/connect/OpenTools_Ordernumber.xml