Add min_similarity and prefix_length to flt.
Add min_similarity and prefix_length to flt.

mavarick/pyes,aparo/pyes,aparo/pyes,haiwen/pyes,haiwen/pyes,jayzeng/pyes,jayzeng/pyes,mouadino/pyes,rookdev/pyes,Fiedzia/pyes,Fiedzia/pyes,mavarick/pyes,haiwen/pyes,HackLinux/pyes,rookdev/pyes,mouadino/pyes,aparo/pyes,HackLinux/pyes,HackLinux/pyes,Fiedzia/pyes,mavarick/pyes,jayzeng/pyes