Producing a log file when polling fails may cause errors in the data
when generating reports. By ommitting failed polls, the back end is
able to compensate for the missing information.

FLEXlm usually outputs license usages with user name, host name, and a
display value. In some cases the display value is missing, and this patch
will allow FlexPoller to accept the user name and the host name, while
keeping the display value blank.

Flexpoller had bug in parsing when encountering lmstat output where
checked out entry lines where missing feature version info.