Replaced Flex with Fish

Dockerfile

@@ -2,7 +2,7 @@ FROM ubuntu:17.04
 RUN apt-get update && apt-get upgrade -y
 RUN apt-get -qq install -y apt-utils > /dev/null
 RUN apt-get -qq install -y moreutils
-RUN chronic apt-get -qq install -y afnix algol68g aplus-fsf asymptote ats2-lang bash bc bf bison bsdgames clisp clojure coffeescript dafny dc ecere-dev elixir emacs24 erlang f2c fp-compiler fsharp g++ gambas3-script gap gawk gcc gdc genius gforth gfortran ghc ghostscript gnat gnu-smalltalk gnuplot gobjc golang gpt groff groovy guile-2.0 haxe icont iconx intercal iverilog jasmin-sable jq julia libgd-dev libpng-dev lisaac llvm lua5.3 make maxima minizinc mlton mono-devel mono-mcs mono-vbnc nasm neko nickle nim nodejs ocaml octave open-cobol openjdk-8-jdk pari-gp perl php-cli pike8.0 python r-base ratfor regina-rexx ruby rustc scala scilab slsh squirrel3 swi-prolog tcl valac xsltproc yorick zoem && apt-get clean
+RUN chronic apt-get -qq install -y afnix algol68g aplus-fsf aspectc++ aspectj asymptote ats2-lang bash bc bf bison bsdgames clisp clojure cmake coffeescript dafny dc ecere-dev elixir emacs24 erlang f2c fish fp-compiler fsharp g++ gambas3-script gap gawk gcc gdb gdc genius gforth gfortran ghc ghostscript gnat gnu-smalltalk gnuplot gobjc golang gpt gri groff groovy guile-2.0 gzip haxe icont iconx intercal iverilog jasmin-sable jq julia ksh libgd-dev libpng-dev lisaac livescript llvm lua5.3 m4 make maxima minizinc mlton mono-devel mono-mcs mono-vbnc nasm neko nescc nickle nim node-typescript nodejs ocaml octave open-cobol openjdk-8-jdk pakcs pari-gp parser3-cgi perl php-cli pike8.0 python r-base rakudo ratfor rc regina-rexx ruby ruby-mustache rustc scala scilab sed slsh spin squirrel3 swi-prolog tcl tcsh valac vim xsltproc yabasic yorick zoem zsh && apt-get clean
 ENV PATH /usr/games:$PATH
 ADD . /usr/local/share/quine-relay
 WORKDIR /usr/local/share/quine-relay