scripts/prepare_dist_from_git.sh: Generate correct REVISION file contents.
Merge branch 'master' of github.com:log4cplus/log4cplus
Add log4cplus::spi::FunctionFilter.

This filter allows implementing filters based on
std::function<FilterResult (const InternalLoggingEvent &)> objects.
Simplify some for(;;) loops into C++11 for(a:b) loops.
Merge pull request #29 from wilx/master

Merge.