Another ABI change in ELPA_2014.06 pre-release
Build servers recommend against calling "abort" functions in a library. Thus, from now on, ELPA returns a success flag, which is a change of ABI! In order to force the user to honour this, the ELPA drivers are converted to functions, which implies an adaptation and rebuild of the user code. The driver functions return a logical "success", which, if it is false, indicates an error within the library. It is advised to check catch and check this return value in the user code, which calls ELPA.