* [haskell] Style fixes

No changes to functionality

* [haskell] Updated `assemble` function

assemble now takes a list of strings, rather than a single semicolon or newline -delimited string. This is more "Haskell-ish".

* [haskell] More style fixes

update bindings to add KS_OPT_SYM_RESOLVER. Python binding now supports this option. see sample.py for example

- 'beta' and renaming is unnecessary

Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

- Currently can't building because not found const variables

- panic built-in function is always exist of program. Remove else and
  export 'ks' variable in the main function

Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>

Included sentence on opam config env, and running a test binary.

 Removed unused utility functions and renamed variables

Both samples/sample.c and bindings/haskell/sample/Sample.hs produce the same
output

* ks_free: The 'p' argument should have type unsigned char* to match the type of the 'encoding' argument to ks_asm