Crash and bugs report

Hi,

• The latest crash I founded isn't solved, i added a comment on this thread here #3 (closed) for more explanations, screenshot : http://i.imgur.com/FsiZ3KE.png, paste : http://zerobin.qbuissondebon.info/?4305a2ef5d04b37a#tBrsDXeveuzRxObfuy4fPEmJ/zxbV2aJg7ojJ9ECBCA=

• An other bug is with the shell arrow, nothing happens when drowing->hitting a node, only bug lines in chat/terminal, screenshot : http://i.imgur.com/oKhAz38.png

• The TNTarrow met many problems with "air" remplacement, screenshot : http://i.imgur.com/FjWOuxv.jpg

• And when we use dig arrow, the node is digged, but don't appear in our inventory, maybe your work isn't over for this arrow ? so it's not a bug,

Thank you for your work !