medley loadup scripts should not error if an lde/ldeinit is on the path

[nbriggs]

I thought we'd fixed this problem a while back --

>>>>> START loadup-init
ESC[41mESC[37mERROR: Cannot find the Maiko executable (darwin.x86_64/lde) in eitherESC(BESC[m
ESC[41mESC[37m"/Users/briggs/Projects/medley/maiko" or "/Users/briggs/Projects/medley/../maiko".ESC(BESC[m
ESC[41mESC[37mExiting.ESC(BESC[m
----- FAILURE -----
..... files created .....
<<<<< END loadup-init

----- loadup-all.sh: FAILURE -----
briggs@macrobiotic medley % which lde
/Users/briggs/Projects/maiko-test/darwin.x86_64/lde
briggs@macrobiotic medley % 

If lde (and ldeinit) are accessible from the PATH then it should NOT be trying to find them in locations constructed from the current working directory.