Change quote escaping in testReleaseHelp to support older versions of csh.
Update version.cpp to correctly check for default BUILD_VERSION.

I went back and forth on whether the default for BUILD_VERSION should be empty
string or string with 0 in it. Ultimately, the latter was chosen, but I forgot
to update the strcmp in version.cpp. That is now fixed.
Merge pull request #568 from thomasvandoren/fix-test-release-base-1.10

Propagate --version fix to release/1.10 branch.

Add #567 to release/1.10 branch.