Merge lp://staging/~daniel-nichter/percona-toolkit/fix-version into lp://staging/percona-toolkit/1.0

bin/pt-archiver (+21/-17)
bin/pt-config-diff (+21/-17)
bin/pt-deadlock-logger (+21/-17)
bin/pt-duplicate-key-checker (+21/-17)
bin/pt-fifo-split (+21/-17)
bin/pt-find (+21/-17)
bin/pt-fk-error-logger (+21/-17)
bin/pt-heartbeat (+21/-17)
bin/pt-index-usage (+21/-17)
bin/pt-kill (+21/-17)
bin/pt-log-player (+21/-17)
bin/pt-online-schema-change (+21/-17)
bin/pt-query-advisor (+21/-17)
bin/pt-query-digest (+21/-17)
bin/pt-show-grants (+21/-17)
bin/pt-slave-delay (+21/-17)
bin/pt-slave-find (+21/-17)
bin/pt-slave-restart (+21/-17)
bin/pt-table-checksum (+21/-17)
bin/pt-table-sync (+21/-17)
bin/pt-tcp-model (+21/-17)
bin/pt-trend (+21/-17)
bin/pt-upgrade (+21/-17)
bin/pt-variable-advisor (+21/-17)
bin/pt-visual-explain (+21/-17)
lib/OptionParser.pm (+24/-20)
t/pt-visual-explain/pt-visual-explain.t (+12/-1)
util/update-modules (+6/-1)