rmpstat: add format string to avoid compiler warning
fix getopt return value type

getopt returns an int, not a char (and ARM chars are unsigned by
default).
autotools: check for ar
autotools: reconfigure
add .gitignore
Update changelog to reflect recent changes
msub|bs/slurm: allow trailing script parameters in msub
tag release 1.5.4-9
Merge branch 'master' into bridge-1.5.x
REtag release 1.5.4-9