v1_9_Build_1242
pre_v1_9_Builb_1242
v1_9_Build_1241
pre_v1_9_Build_1241
multiple bugs fixing: batch corrections, break self-intersecting lines, remove overshoot
Support for errors whithout features (gaps, etc)
changes to avoid to add a new error layer every time we validate a topology
first version in svn