Use a fake dht during hidden services unit test
Allow different EC curve filename
do not run tracker checking after shutdown
always print encoded_atp when getting exception
change TFTP file not found message to a warning
fix TFTP timeout callback handling problem
Merge pull request #948 from LipuFei/some_fixes

Some fixes
Merge pull request #950 from egbertbouman/fixes

Fixes for hidden services test
fix libtorrent big_number problem (an ugly approach)
Merge pull request #951 from LipuFei/fix_libtorrent_bignumber

Fix libtorrent big_number problem (an ugly approach)
fix TFTP callback scheduling
Merge pull request #955 from LipuFei/fix_tftp_callback_schedule

Fix TFTP callback scheduling
Merge branch 'devel' of https://github.com/Tribler/tribler.git into tunnel_test
Test