"../"-regex also matched the ts/ of bower_components/ - therefore removing it

The `ignorePath` in the wiredep configuration matched the ending of the bower_components/ folder, removing the "ts/":
```html
<script src="bower_componenjquery/dist/jquery.js"></script>
```
which obviously should be:
```html
<script src="bower_components/jquery/dist/jquery.js"></script>
```

discussed here: stephenplusplus/grunt-wiredep#87 - thanks to @stephenplusplus for pointing out :grin: