csbench 1.1

Big update of functionality

• Move execution of custom measurements from main measurement loop. Execute them after all timings have been finished. This is done to minize work done during benchmark execution.
• Add ability for benchmarks to be suspended and resumed later - this is used when execuing in rounds. Round is a sequence of consequetive runs, optionally beginning with warmup.
• Round stop, warmup stop and benchmark stop are all controlled with 4 parameters: total number of rounds, maximum running time, minimum and maximum run count.
• Add --inputs option to specify string to be used for input.
• Add --inputd option to specify directory, all files from which should be used as input.
• Allow variables in --input and --inputs strings.
• Add option --common-args to specify string to be appended to each of the benchmarked commands.