avoid real vector space
Try different collision algorithms
Add case where point exactly on plane
Improve efficiency
Add Modified by line
Update comments
Merge branch 'master' into chris/in-triangle
Add test cases for issue #296.
Fix output formatting error
Merge branch 'mirok/fix-issue-409'
Merged chris/issue-418 into master
Fix issue when private struct snes_ctx is deleted.
  -- The f_tmp variable needed to be set to NULL when constructed otherwise it segfaults when destroyed
Fix VERY sloppy casting of void pointer to local variable
Merge branch 'johanhake/fix-issue-417'
Merged in chris/in-triangle (pull request #186)

Improve collision detection (issue #296)
Merged master into chris/tpetra