DOC: updated the manual a bit


git-svn-id: https://svn.bigr.nl/elastix/trunkpublic@4404 4d348492-3962-11de-aa85-65a2020054a3
COMP: solving clang warning

.../src/Common/KNN/ann_1.1/src/kd_dump.cpp:44:15: warning: unused variable 'EPSILON' [-Wunused-const-variable]


git-svn-id: https://svn.bigr.nl/elastix/trunkpublic@4405 4d348492-3962-11de-aa85-65a2020054a3