Update shovel code.

It will use drag'n'drop feature.
It'll also have protection so you don't bury items too difficult to obtain,
items which are bound, and your own shovel (ofc).

PS. Legacy code was NOT updated to meet with @gumi standards, only new one.
The code was tested.
13 jobs for jesusalva/shovel in 38 minutes and 14 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Build
passed #78839161
build_test

00:14:31

passed #78839166
mariadb_init_10.0

00:02:27

passed #78839167
mariadb_init_5.5

00:02:01

passed #78839165
mariadb_init_latest

00:02:15

passed #78839162
mysql_init_5.5

00:01:21

passed #78839163
mysql_init_5.6

00:02:01

passed #78839164
mysql_init_5.7

00:02:08

 
  Test
passed #78839169
mariadb_run_latest

00:12:07

passed #78839168
mysql_run_5.7

00:09:43

 
  Valgrind
passed #78839171
mariadb_run_valgrind_latest

00:07:44

passed #78839170
mysql_run_valgrind_5.7

00:10:35

 
  Fail
skipped #78839172
fail_job
 
  Ok
passed #78839173
ok_job

00:00:58