OAK-1702 - Create a benchmark for Full text search

Changing the sampling frequency to per 100 from per 1000 as for fo wiki it only samples 15 words

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1587808 13f79535-47bb-0310-9956-ffa450edef68
OAK-1702 - Create a benchmark for Full text search

Expose setting (--blobCache) for changing in memory blob cache size as introduced in OAK-1726

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1587809 13f79535-47bb-0310-9956-ffa450edef68