Version 1.1-252. The previous version (251) did not build on R-Forge; my only possible diagnosis was the lack of eoln-native property on HomCovariateTransitiveTripletsEffect.h and .cpp.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rsiena@252 edb9625f-4e0d-4859-8d74-9fd3b1da38cb