Crash/Stacktrace when selecting a value out of range in restore-trash

[Ampelbein]

When entering a value of of range, restore-trash crashes:

(saucy)andreas@incubator:~$ restore-trash
0 2013-08-02 12:50:39 /home/andreas/temp/2
1 2013-08-02 12:50:39 /home/andreas/temp/1
What file to restore [0..1]: 2
Traceback (most recent call last):
File "/usr/bin/restore-trash", line 9, in
load_entry_point('trash-cli==0.12.7', 'console_scripts', 'restore-trash')()
File "/usr/lib/python2.7/dist-packages/trashcli/cmds.py", line 20, in restore
input = raw_input
File "/usr/lib/python2.7/dist-packages/trashcli/trash.py", line 549, in run
trashed_files[index].restore()
IndexError: list index out of range

restore-crash should check the user input, give an error and go back to the selection screen when the value entered is invalid.

[andreafrancia]

pull request with patched welcome