Cleanup APIWatchDog

Was always killing my windoze after 3mins.
Tidy up err msg gen
Tone down test from 14G to 2G
Cleanup Ice FS file-gen

1G for prior test was not enuf; turned into a test of Ice swap/spill.
Need to handle keys ending in ">" (dunno where it came from).  Also, go
back to verticle aligned cols for describing key/fsname mappings.
Missed a char cast