updated JavaDoc; stripped out redundant foreign_frame calls
updated JavaDoc; stripped out redundant foreign_frame calls

koryonik/swipl-devel,mndrix/swipl-devel,koryonik/swipl-devel,koryonik/swipl-devel,jn7163/swipl-devel,koryonik/swipl-devel,jn7163/swipl-devel,mndrix/swipl-devel,jn7163/swipl-devel,edechter/swipl-devel,jn7163/swipl-devel,mndrix/swipl-devel,jn7163/swipl-devel,mndrix/swipl-devel,koryonik/swipl-devel,edechter/swipl-devel,mndrix/swipl-devel,edechter/swipl-devel,edechter/swipl-devel,edechter/swipl-devel