release 3.10.6

Merge branch 'guox191-3.x' into 3.x

building docs

ready to release v3.10.3

update sha1 to sha256, ready to release v3.9.1

bugfix for web gui

update version number, ready to release v3.8.0

bugfix for #36, ready to release v3.7.7

merge PR #34, ready to release 3.7.5

bugfix for intercepting some https url