* Update samples for several languages.
Just whitespace changes and some reordering where the order doesn't matter.
* Adding generated .swagger-codegen/VERSION files.
* [Erlang] Address apparent reproducibily issue of sample
Spotted running `bin/erlang-petstore-server.sh` on d08d55d41 .
Apart from newlines, this is the opposite change of ec6248cbc .
* [Erlang] Perform basic testing of sample server on CI
* [Erlang] Install recent Erlang/OTP version
... in order to satisfy `jesse` compilation.
The error I faced is:
```
$ curl -f -L -o ./rebar3 https://s3.amazonaws.com/rebar3/rebar3 && chmod +x ./rebar3 && ./rebar3 version && export PATH="${TRAVIS_BUILD_DIR}:$PATH"
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 766k 100 766k 0 0 1041k 0 --:--:-- --:--:-- --:--:-- 1041k
rebar 3.3.6 on Erlang/OTP R16B03 Erts 5.10.4
...
===> Verifying dependencies...
===> Fetching jesse ({git,"https://github.com/for-GET/jesse.git",
{tag,"1.4.0"}})
===> Fetching jsx ({git,"https://github.com/talentdeficit/jsx.git",
{branch,"v2.8.0"}})
===> Skipping jsx (from {git,"git://github.com/talentdeficit/jsx.git",
{tag,"2.8.0"}}) as an app of the same name has already been fetched
===> Compiling jsx
===> Compiling jesse
===> Compiling _build/default/lib/jesse/src/jesse_tests_util.erl failed
_build/default/lib/jesse/src/jesse_tests_util.erl:28: can't find include lib "common_test/include/ct.hrl"
_build/default/lib/jesse/src/jesse_tests_util.erl:55: undefined macro 'config/2'
_build/default/lib/jesse/src/jesse_tests_util.erl:24: function do_test/2 undefined
_build/default/lib/jesse/src/jesse_tests_util.erl:72: function test_schema/3 is unused
_build/default/lib/jesse/src/jesse_tests_util.erl:102: function get_path/2 is unused
_build/default/lib/jesse/src/jesse_tests_util.erl:105: function load_schema/1 is unused
[ERROR] Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:804)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:751)
at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:313)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:exec (Erlang Test) on project ErlangServerTests: Command execution failed. Process exited with an error: 1 (Exit value: 1) -> [Help 1]
```
* [Erlang] Bump `jsx` dependency to latest stable version
* [Erlang] Disable sample server from CI until compilation works
* Pretty-print swagger.json.
(This was done via `jq`. In a later commit we'll generate it pretty-printed.)
* Erlang Server: pretty-print generated swagger.json.
* Update samples for Erlang-server.
