lpc21isp version 1.94

Changes between 1.92 and 1.94:

1.93   2013-07-05 Andrew Pines
                  changed Makefile to exclude "-static" from CFLAGS when building for OS X
                  changed serial timeout for *nix to use select
                  added -boothold argument to assert ISP throughtout programming sequence
                  added support for -try<n> command line argument (was in help, didn't actually work)
1.94   2013-08-10 Martin Maurer
                  Add (assumed) part id values for LPC4333 and LPC4337
                  Correct table entries for all LPC43xx part id numbers
                  (missing flag for two word part ids and second word for LPC4333 and LPC4353)
                  Merge in optimization (thanks to Stefan) to skip empty sectors
                  Correct help output of "-boothold"
                  Add workaround table entry for LPC4357 and word1 equal to 0x0EF60000
                  Bugfix for wrong check of word0/word1 combination
                  Correct a lot entries in lpc property table of LPC18xx and LPC43xx

                  LPC18xx and LPC43xx: Add warning message, that wipe erases only bank A