Merge pull request #12 from sappo/master

Install scripts only
Added chunk and longstr types

- strings are now "string" or "longstr"
Removed limitations on strings and dictionaries

- count is now 4 octets
- strings entries are longstr
- instead of 'key=value', stored as string, longstr

    ; A list of string values
    strings         = count *value
    value           = longstr

    ; A list of name/value pairs
    dictionary      = count *( name value )
    count           = number-4
    name            = string
Merge pull request #13 from hintjens/master

Improved lists & hashes
Added dependency to gsl, Removed dependency to generate script
Removed lib dependency in configure.ac
Merge branch 'master' of github.com:zeromq/zproto