Returns the last error generated by the plugin. Each of the libraries we use have their own error codes. Not currently applicable in all situtations.
In the case of the http functions we're using the curl libraries. You can try looking here : http://curl.haxx.se/libcurl/c/libcurl-errors.html
Version : 1.2
2.0 : changed the way this works so that successive calls to the BE_GetLastError function don't reset the value that is returned, it's only reset when performing any other function call.
Result : the code or text of the last error generated by a function call.