Some of the scripts assumed that other scripts would be located in the
same directory where the current script was executed.
Also fixed the SSL connection creation which depended on an obsolete
environment variable causing all out-of-source SSL tests to fail.
Auto types aren't very neat as return values because they move the burden
of knowledge to the reader. Using an explicit, and somewhat
self-explanatory, type makes it easier to assess the code without knowing
the implementation of the type.
Combined functions into one which only used different default
values. Removed unused functions. Used std::string where possible to make
their usage easier. Hid code that isn't used externally.
The ssh_node function now supports printf style arguments. This is used to
simplify command execution on the nodes.
Curreltny, in addition to its old usage, it is used to drop extra
databases when replication is started.
The test seems to fail when executed outside of a debugger. A delay
between creating the connections and checking the connection count appears
to fix the problem.
Refactored the test to use stack allocated objects and favored assertion
style functions over conditional clauses with failing assertions inside
them.
