update awe documentation
Add local_resources
Function to measure locally and set manual options.
Function to measure worker local/foreman global.
Measure just before sending the update to the master
Do not report manual option for disk and memory if less than available.

Disk and memory available to a worker may go under the manual option as
the worker shares resources with other processes. This commit makes the
worker conservative, by reporting the minimum between the total
available and the manual option.
Adds execuution time to the log/stats
Graph script first commit
Add graph script to install list
Add copying license
Fix missing key check
Scale time fields automatically
Refactor to make it easy to add new plots (e.g., user defined from command line)
Add note to manual about work_queue_graph_log
Clean up plot_line use
Use -o prefix with getopt
invalidate file path in the channel cache if a file is unlinked/renamed
Unify SETUP_FILE behavior.

o Uses CHIRP_FILESYSTEM_MAXFD in all file systems.
o Uniform "valid fd" check.
o Do not allow access to Chirp server's file descriptors
  for the local file system (bug). This would allow access
  to e.g. stdin/stdout/stderr/debugfd.
Set gnuplot location from command line
Fallback to 'cat' if gnuplot is not available