Fix float parsing bug

package.json

@@ -1,6 +1,6 @@
 {
   "name": "good-env",
-  "version": "7.6.1",
+  "version": "7.6.2",
   "description": "Better environment variable handling for Twelve-Factor node apps",
   "main": "src/index.js",
   "scripts": {

src/index.js

@@ -331,14 +331,9 @@ module.exports = Object
      */
     getNumber (key, defaultVal) {
       const value = this.get(key, defaultVal);
-      const intVal = parseInt(value, 10);
-      const valIsInt = Number.isInteger(intVal);
-
-      if (value === defaultVal) {
-        return value;
-      } else if (valIsInt) {
-        return intVal;
-      }
+      if (value === defaultVal) return value;
+      const num = parseFloat(value);
+      if (!isNaN(num)) return num;
     },
 
     /**

test/test.env

@@ -1,6 +1,7 @@
 FOO=bar
 BANG=boop
 INT_NUM=10
+FLOAT_NUM=3.14
 MY_LIST=foo ,bar,beep
 MY_TRUE_KEY=true
 MY_FALSE_KEY=false

test/test.js

@@ -255,6 +255,18 @@ test('returns integers', (t) => {
   t.end();
 });
 
+test('returns floats', (t) => {
+  let result = env.getNumber('FLOAT_NUM');
+  t.equals(result, 3.14);
+  result = null;
+  result = env.num('FLOAT_NUM');
+  t.equals(result, 3.14);
+  result = null;
+  result = env.num(['INTT', 'FLOAT_NUM']);
+  t.equals(result, 3.14);
+  t.end();
+});
+
 test('returns undefined for non-exequalsting number', (t) => {
   const result = env.getNumber('INT_NOT_HERE');
   t.equals(undefined, result);