Fixed the function ChangeFlags and Cleaned the change of coordinates when updated node.Solutions... the code is running

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15928 a8012f80-5f13-0410-8dc0-eb77bd940c0d
Cleaned some unused functions and made some comments

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15929 a8012f80-5f13-0410-8dc0-eb77bd940c0d
tested the Problem of 4 lines with osculating flags and reduced the solutions to get real numbers

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15930 a8012f80-5f13-0410-8dc0-eb77bd940c0d
Merge git and svn histories

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15931 a8012f80-5f13-0410-8dc0-eb77bd940c0d