chore(deps): update eslint to v5 (#13)

BREAKING CHANGE: use ESLint v5 as the peerDependencies

Author: koba04

lib/base.js

@@ -55,20 +55,15 @@ module.exports = {
     // no-useless-escape
 
     // Possible Errors
-    "for-direction": "error",
-    "getter-return": [
-      "error",
-      {
-        allowImplicit: true
-      }
-    ],
     "no-extra-parens": ["error", "functions"],
     "valid-typeof": [
       "error",
       {
         requireStringLiterals: true
       }
     ],
+    // for-direction
+    // getter-return
     // no-compare-neg-zero
     // no-cond-assign
     // no-constant-condition
@@ -283,6 +278,7 @@ module.exports = {
     // no-implicit-coercion
     // no-labels
     // no-magic-numbers
+    // max-classes-per-file
     // no-native-reassign (deprecated)
     // no-new
     // no-restricted-properties
@@ -334,6 +330,7 @@ module.exports = {
     // lines-around-directive
     // lines-between-class-members
     // max-lines
+    // max-lines-per-function
     // max-nested-callbacks
     // max-params
     // max-statements-per-line
@@ -348,6 +345,7 @@ module.exports = {
     // no-inline-comments
     // no-multi-assign
     // no-negated-condition
+    // prefer-object-spread
     // no-plusplus
     // no-restricted-syntax
     // no-ternary