Replace bumper with grunt-bump, closes item:519

[Usage][]:

```bash
grunt bump[:[patch|minor|major|build|git]]
```

[usage]: https://github.com/vojtajina/grunt-bump#usage-examples
Sync description with GitHub
Merge pull request #335 from tlvince/refactor/grunt-bump

Replace bumper with grunt-bump, closes item:519
Merge pull request #337 from tlvince/refactor/package-description

Sync description with GitHub, closes item:520
bowerInstall -> wiredep, closes item:522