UnitTest additions, mostly from Tom.
LibArchive HINTS restored.
Merge pull request #6 from matzk/master

UnitTests for src/util
UnitTest additions - they were supposed to be committed last time.
.gitignore for CVAC.
Merge pull request #7 from matzk/master

gitignore and FindUnitTest++.cmake
gitignore all generated files, including Data.* and Services.* which are "sliced" from *.ice files.
more ignored files
Merge pull request #8 from matzk/master

more files gitignored
added test data and changed unit tests to use test/temp directory
Merge remote branch 'cvachome/master'
fixed a unit test problem