add strhash_new()
add strhash_add()
add strhash_hash()
add strhash_free()
add strhash_resize()
add strhash_iter()
add strhash header
resize the hash if 70% are used.
add uniq
adjust for uniq
unified error messages
increase buffer
Merge branch 'dev-uniq'
add copyright note
add description for uniq