Merge pull request #50 from apache/logcxx_510_ts

Building the current MASTER, I came across additional errors for LOGCXX-510: log4cxx.rc wasn't found properly and some new CMAKE behaviour needs to be enabled sooner than in the past.

https://issues.apache.org/jira/browse/LOGCXX-510?focusedCommentId=17258448&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17258448