Remove ruby deps

[sobolevn]

While working on #60 I was forced to install some ruby gems.

A lot of webdevs do not use ruby. And it is a good practice in node community not to use it. All the dependencies are available as npm packages:

• you rely on sass gem, but is available for node: https://github.com/sass/node-sass
• you rely on scss_lint gem, but is available for node: https://github.com/sasstools/sass-lint

So, I can change the dependencies in the PR to be 100% node compatible.

[0crat]

@yegor256 please, pay attention to this issue

[yegor256]

@sobolevn yes, please, make the necessary changes in the pull request. Thanks!

[0crat]

There is an unrecoverablefailure on my side. Please, submit it here:

java.lang.ClassCastException: org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to javax.json.JsonString
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getJsonString(JsonObjectBuilderImpl.java:252)
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getString(JsonObjectBuilderImpl.java:257)
	at com.zerocracy.radars.github.RbByLabel.react(RbByLabel.java:82)
	at com.zerocracy.radars.github.RbByActions.react(RbByActions.java:65)
	at com.zerocracy.radars.github.Rebound$Chain.react(Rebound.java:74)
	at com.zerocracy.radars.github.RbSafe.lambda$react$0(RbSafe.java:63)
	at org.cactoos.func.FuncWithFallback.apply(FuncWithFallback.java:299)
	at org.cactoos.func.IoCheckedFunc.apply(IoCheckedFunc.java:66)
	at com.zerocracy.radars.github.RbSafe.react(RbSafe.java:79)
	at com.zerocracy.radars.github.RbLogged.react(RbLogged.java:52)
	at com.zerocracy.radars.github.TkGithub.act(TkGithub.java:161)
	at org.takes.facets.fork.FkRegex$1.act(FkRegex.java:154)
	at...

[0crat]

There is an unrecoverablefailure on my side. Please, submit it here:

java.lang.ClassCastException: org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to javax.json.JsonString
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getJsonString(JsonObjectBuilderImpl.java:252)
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getString(JsonObjectBuilderImpl.java:257)
	at com.zerocracy.radars.github.RbByLabel.react(RbByLabel.java:82)
	at com.zerocracy.radars.github.RbByActions.react(RbByActions.java:65)
	at com.zerocracy.radars.github.Rebound$Chain.react(Rebound.java:74)
	at com.zerocracy.radars.github.RbSafe.lambda$react$0(RbSafe.java:63)
	at org.cactoos.func.FuncWithFallback.apply(FuncWithFallback.java:299)
	at org.cactoos.func.IoCheckedFunc.apply(IoCheckedFunc.java:66)
	at com.zerocracy.radars.github.RbSafe.react(RbSafe.java:79)
	at com.zerocracy.radars.github.RbLogged.react(RbLogged.java:52)
	at com.zerocracy.radars.github.TkGithub.act(TkGithub.java:161)
	at org.takes.facets.fork.FkRegex$1.act(FkRegex.java:154)
	at...

[0crat]

There is an unrecoverablefailure on my side. Please, submit it here:

java.lang.ClassCastException: org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to javax.json.JsonString
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getJsonString(JsonObjectBuilderImpl.java:252)
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getString(JsonObjectBuilderImpl.java:257)
	at com.zerocracy.radars.github.RbByLabel.react(RbByLabel.java:82)
	at com.zerocracy.radars.github.RbByActions.react(RbByActions.java:65)
	at com.zerocracy.radars.github.Rebound$Chain.react(Rebound.java:74)
	at com.zerocracy.radars.github.RbSafe.lambda$react$0(RbSafe.java:63)
	at org.cactoos.func.FuncWithFallback.apply(FuncWithFallback.java:299)
	at org.cactoos.func.IoCheckedFunc.apply(IoCheckedFunc.java:66)
	at com.zerocracy.radars.github.RbSafe.react(RbSafe.java:79)
	at com.zerocracy.radars.github.RbLogged.react(RbLogged.java:52)
	at com.zerocracy.radars.github.TkGithub.act(TkGithub.java:161)
	at org.takes.facets.fork.FkRegex$1.act(FkRegex.java:154)
	at...

[0crat]

There is an unrecoverablefailure on my side. Please, submit it here:

java.lang.ClassCastException: org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl cannot be cast to javax.json.JsonString
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getJsonString(JsonObjectBuilderImpl.java:252)
	at org.glassfish.json.JsonObjectBuilderImpl$JsonObjectImpl.getString(JsonObjectBuilderImpl.java:257)
	at com.zerocracy.radars.github.RbByLabel.react(RbByLabel.java:82)
	at com.zerocracy.radars.github.RbByActions.react(RbByActions.java:65)
	at com.zerocracy.radars.github.Rebound$Chain.react(Rebound.java:74)
	at com.zerocracy.radars.github.RbSafe.lambda$react$0(RbSafe.java:63)
	at org.cactoos.func.FuncWithFallback.apply(FuncWithFallback.java:299)
	at org.cactoos.func.IoCheckedFunc.apply(IoCheckedFunc.java:66)
	at com.zerocracy.radars.github.RbSafe.react(RbSafe.java:79)
	at com.zerocracy.radars.github.RbLogged.react(RbLogged.java:52)
	at com.zerocracy.radars.github.TkGithub.act(TkGithub.java:161)
	at org.takes.facets.fork.FkRegex$1.act(FkRegex.java:154)
	at...

[0crat]

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