Minor update 1.1.0 with loadExtension()

Release 1.0.0

Changed Column::getText() to return empty string "" by default instea…

…d of NULL pointer (to handle std::string conversion)

 - Fix issue SRombauts#17

Some more APIs and std::string version of existing API's

dded Column::getName() vs Column::getOriginName() API

Minor API update

Release of a nearly complete feature set

First realy usefull release

Initial release