Add REPL capabilities

You can do it as of now... just run 
```
sbt console
```
This class loads all of the appropriate stuff and you can interact with it interactively:
```
import com.akdeniz.googleplaycrawler._
val gapi = new GooglePlayAPI("username@gmail.com","password", "androidID")
gapi.login
val results = gapi.search("something)
```
Then you can do filtering on the results as in the following psuedo code
results.filter(r => r.price == 0) 
Tab completion will work as well when looking for methods off classes...

The actual fix part of this is for removing the scala jars when building, but leaving them in when running the REPL..