Add timestamp and argument list to log files
Make logging cheaper in the non-verbose case
encfs installation does respect homebrew path

The configure script of encfs expected osxfuse in /usr or /usr/local.
This patch enables the configure script to search for fuse include
files also in HOMEBREW_PREFIX.
Removed extra newline
Added comment with link to issue in encfs GitHub project.
encfs: update 1.7.5 bottle.