changes in version 0.6
 - change DESCRIPTION to have Authors@R field
 - fix Rd cross-references to have package anchors

changes in version 0.5
 - minor fix to man file: added alias statements to internalRK.Rd file
 - update citation in some man files

changes in version 0.4
-added brkControl to export function in namespace, so that it can be used.
-updated reference