lpc21isp version 1.91

Change between 1.86 and 1.91:

1.87   2012-12-18 Philip Munts
                  Added a section of code to ResetTarget() in lpc21isp.c to allow using Linux GPIO pin
                  to control reset and ISP.
1.88   2013-04-25 Torsten Lang, Uwe Schneider GmbH
                  Fixed answer evaluation
                  Added sector tables for LPC1833
                  XON/XOFF handling according to LPC manual
                  Changed COMMTIMEOUTS settings according to MS help
                  Changed waiting code from tick counting to system time usage
                  Set MM timers to 1ms resolution (otherwise waiting in the serial driver is limited to multiples of 10ms)
                  Send all commands with <CR><LF> according to NXP UM
                  Change answer evaluation to match at least LPC17xx and LPC18xx families (LPC17xx just mirrors the first character of
                    the LF sequence, LPC18xx mirrors the first character and adds an <LF> which then will lead to a <CR><LF><LF>
                    sequence, all other lines are terminated with <CR><LF> as documented)
                  Change answer formatting by filtering leading <LF> characters because they can be left over from a previous response
                  Store residual data of an answer (required for the J command which will deliver two words in case of the LPC18xx)
                  Expanded configuration table by second identification word and usage flag
                  Do a two stage scan in case that a device with two identification words is detected
1.89   2013-06-27 Martin Maurer
                  Thanks to Manuel and Henri for bugfixes and speed-ups
                  Bugfix: In case of LPC8XX, XON/XOFF handling must be switched off,
                  otherwise download gets broken, because XON/XOFF are filtered out...
1.90   2013-06-27 Martin Maurer
                  Add checksum calculation for LPC8XX
                  winmm function only available in MSVC, put ifdefs around
                  Workaround for lost characters of LPC8XX
1.91   2013-06-28 Torsten Lang, Uwe Schneider GmbH
                  Minor bugfix for the residual data handling