Fixes bug 793430, add 'zzz_AsmCodeRange_.*' to the prefix skiplist
Fixes bug 778404, add arena_.* to the prefix list and remove redundant terms
Fixes bug 823700, add jemalloc_crash to the prefix skip list
Put the skiplist back in alphabetical order
add missing memcached dependency
bug 826451 - ftpscraper should be in list of default jobs, since current jobs depend upon it