Make it movable to SD card

```
What is the expected output? What do you see instead?

While alogcat uses only 488KB of internal memory, it would be nice to have it 
movable to the SD card.

What version of the product are you using? On what operating system?

alogcat is 2.6.1
```

Original issue reported on code.google.com by `nao...@gmail.com` on 11 Jan 2013 at 10:43
