fixed issue 8: get_num_tokens() now divides by length of delimiter
fixed issue 8:
get_num_tokens() now divides by length of delimiter

git-svn-id: bf9c1e153a520e62e214c071abac674e79383ca0@72 c8a82860-ae11-f3b5-05a3-c0c726401f9a

shlomi-noach/common_schema