Add issue template and update deps

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,44 @@
+### Step -1: Before filling an issue check out troubleshooting section
+
+  * Go to [README.md#Troubleshooting](https://github.com/rtfpessoa/diff2html#troubleshooting)
+
+### Step 0: Describe your environment
+
+  * OS: _____
+  * diff2html version: _____
+  * Using diff2html directly or using diff2html-ui helper: _____
+  * Extra flags: _____
+
+### Step 1: Describe the problem:
+
+#### Steps to reproduce:
+
+  1. _____
+  2. _____
+  3. _____
+
+#### diff example:
+
+  ```diff
+  diff --git describe.c
+  index fabadb8,cc95eb0..4866510
+  --- a/describe.c
+  +++ b/describe.c
+  @@@ -98,20 -98,12 +98,20 @@@
+     return (a_date > b_date) ? -1 : (a_date == b_date) ? 0 : 1;
+   }
+  ```
+
+#### Observed Results:
+
+  * What happened?  This could be a description, log output, etc.
+
+#### Expected Results:
+
+  * What did you expect to happen?
+
+#### Relevant Code:
+
+  ```
+  // TODO(you): code here to reproduce the problem
+  ```

package.json

@@ -56,14 +56,14 @@
   "dependencies": {
     "diff": "^3.1.0",
     "hogan.js": "^3.0.2",
-    "whatwg-fetch": "^1.0.0"
+    "whatwg-fetch": "^2.0.1"
   },
   "devDependencies": {
-    "autoprefixer": "^6.5.1",
+    "autoprefixer": "^6.5.3",
     "browserify": "^13.1.1",
     "clean-css": "^3.4.21",
     "codacy-coverage": "^2.0.0",
-    "eslint": "^3.8.0",
+    "eslint": "^3.12.0",
     "eslint-plugin-promise": "^3.4.0",
     "eslint-plugin-standard": "^2.0.1",
     "fast-html-parser": "^1.0.1",