Use const in lstring_eq and read_int32 to indicate that the argument is not modified.  Rewrite from_string as a string rather than a byte array.
Use const in lstring_eq and read_int32 to indicate that the argument
is not modified.  Rewrite from_string as a string rather than a byte
array.

tphelps/xtickertape,epronk/xtickertape,tphelps/xtickertape,epronk/xtickertape,tphelps/xtickertape