tester: move variable substitutions to separate module and add value creator for parameterized types

git-svn-id: https://scalaris.googlecode.com/svn/trunk@6844 71766da9-9752-0410-ab17-bfafa751c56a
RM: only catch specific base node update failed exception

git-svn-id: https://scalaris.googlecode.com/svn/trunk@6845 71766da9-9752-0410-ab17-bfafa751c56a
nodelist: fix update_node/2 sometimes returning not correctly sorted pred/succ lists

git-svn-id: https://scalaris.googlecode.com/svn/trunk@6846 71766da9-9752-0410-ab17-bfafa751c56a
RM: fix changing pred/succ during base node ID update due to outdated other preds/succs

git-svn-id: https://scalaris.googlecode.com/svn/trunk@6847 71766da9-9752-0410-ab17-bfafa751c56a
tester: add support for non-parameterized types in the value-creator

git-svn-id: https://scalaris.googlecode.com/svn/trunk@6848 71766da9-9752-0410-ab17-bfafa751c56a