Update configure.ac, small leak fix in mlog, and fix uninitialized variable read in mlog.
Code cleanup with valgrind / scan-build
Remove unneeded var/frees
Merge branch 'master' of github.com:plfs/plfs-core

Conflicts:
	configure.ac
	src/FlatFileFD_FS.cpp
	src/IOStore.h
	src/WriteFile.cpp
	src/container_internals.cpp
Merge pull request #206 from thewacokid/master

Small fixes from valgrind, scan-build, etc