fixed issue topic/web2py/LGxJR85pG88, thanks Oliver
fixed issue 1586:MSSQL Date format is language dependent, thanks score2000
Merge pull request #135 from carpaIdea/master

customization of upload package input in admin interface
fixed bug in recent commit, thanks Olivier Johner
fixed problem with tempfiles in Android, thanks Fernando Pacheco
optimizations. Switch to PyCrypto support in pbkdf2 when possible.
Merge pull request #136 from michele-comitini/speed_triks1

optimizations. Switch to PyCrypto support in pbkdf2 when possible.
fixed issue 1587:Mongodb error on id