closes #125 closes #126 closes #127 closes #128 all four issues resolved in previous commits
closes #125 closes #126 closes #127 closes #128 all four issues resolved in previous commits

arvidsson/easyloggingpp,utiasASRL/easyloggingpp,hellowshinobu/easyloggingpp,spqr33/easyloggingpp,lisong521/easyloggingpp,arvidsson/easyloggingpp,simonhang/easyloggingpp,spthaolt/easyloggingpp,blankme/easyloggingpp,dreal-deps/easyloggingpp,chenmusun/easyloggingpp,dreal-deps/easyloggingpp,simonhang/easyloggingpp,hellowshinobu/easyloggingpp,blankme/easyloggingpp,dreal-deps/easyloggingpp,chenmusun/easyloggingpp,spthaolt/easyloggingpp,lisong521/easyloggingpp,simonhang/easyloggingpp,utiasASRL/easyloggingpp,utiasASRL/easyloggingpp,spthaolt/easyloggingpp,blankme/easyloggingpp,spqr33/easyloggingpp,arvidsson/easyloggingpp,chenmusun/easyloggingpp,hellowshinobu/easyloggingpp,lisong521/easyloggingpp,spqr33/easyloggingpp