fix make uninstall
Fix unload

Change 'unload' to 'logout' to match server method name.
Fix cookie parsing

Regarding issue #7, the cookie parsing has been corrected, now
the cookies are parsed better and the application can handle
multiple cookies.
Change app icon
Merge pull request #8 from trecouvr/fix-cookie-parsing

Fix cookie parsing
change icon for a free one
Merge pull request #9 from trecouvr/change-ic_launcher

Change app icon
Add more feed back on transaction result

On success vendor feels a medium vibration and the screen fades to
green.
On failure vendor feels a double vibration and the screen becomes
instantaly red.
Remove useless imports
Merge pull request #10 from trecouvr/more-feedback

Add more feed back on transaction result