Use cmake build for blitz++.

• Autoconf/Automake seems deprecated/broken for newer toolchains on blitz-1.0.2, but I've been having a lot of success using the newer cmake builds for blitz++.
• Have tested this on updated belize2 and locally, and it works in those places.

added 3 commits

• d6ec0deb...fe7e85a6 - 2 commits from branch SPINS:master
• 66dfa614 - Use cmake build for blitz++.

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approved this merge request

mentioned in commit f1d4cf48

merged