Add UPDATE portion of query for existing columns

Still need to add new columns to table, but for now update what I have
Insert & update into missing useful columns

Added Updated_At & Assignee
Resolve issue #33

Add missing columns to issues table, append to INSERT, and add to UPDATE
Merge pull request #34 from shgysk8zer0/isue_33

Merge branch Isue 33
Split commit->Message into summary & body as <details>

- Convert newlines to `<br>`s using `nl2br()`
- use `htmlentities()` to convert characters that need to be converted
- Convert `$commit->Message` into an array using `explode()`
- Use `array_shift()` to get the first line for summary
- Use a join on the rest to get commit body
- Commit body becomes the link, summary un-collapses commit

HTML Output:
<details>
<summary>
SUMMARY
</summary>
<a href="URL" target="_blank">
BODY
</a>
</details>