libsolv security and bug fix update

0.7.19-1 - Update to 0.7.19 - repoaddconda: add flag to skip v2 packages - fix rare segfault in resolvejobrules that could happen if new rules are learnt - fix error handling in solvxfopenfd - fix memory leaks 0.7.17-2 - Fix rpm dependency 0.7.17-1 - Update to 0.7.17 - selected bug fixes:...