chore(npm): follow up splitSentences updates

Author: azu

package.json

@@ -38,12 +38,12 @@
     "espower-babel": "^4.0.0",
     "mocha": "^2.3.4",
     "power-assert": "^1.1.0",
-    "textlint": "^5.0.2",
-    "textlint-tester": "^0.4.0"
+    "textlint": "^6.0.3",
+    "textlint-tester": "^1.2.0"
   },
   "dependencies": {
     "kuromojin": "^1.0.2",
-    "sentence-splitter": "^1.0.1",
+    "sentence-splitter": "^2.0.0",
     "textlint-rule-helper": "^1.1.4",
     "textlint-util-to-string": "^1.1.0"
   }

src/no-doubled-joshi.js

@@ -2,7 +2,7 @@
 "use strict";
 import {RuleHelper} from "textlint-rule-helper";
 import {getTokenizer} from "kuromojin";
-import splitSentences, {Syntax as SentenceSyntax} from "sentence-splitter";
+import {split as splitSentences, Syntax as SentenceSyntax} from "sentence-splitter";
 import StringSource from "textlint-util-to-string";
 import {
     is助詞Token, is読点Token,

test/no-doubled-joshi-test.js

@@ -1,7 +1,6 @@
-import assert from "power-assert";
 import rule from "../src/no-doubled-joshi";
 import TextLintTester from "textlint-tester";
-var tester = new TextLintTester();
+const tester = new TextLintTester();
 /*
     `**`のような装飾は取り除かれてから評価されているので、
     テストでの強調という意味合いのみで利用する。