bump version to 0.4.2
[test]add option 'no_connect' in /nw_app_test
[test] add test case for #408
[README] update for 0.4.2
bump version to 0.4.3-pre
Merge pull request #454 from owenc4a4/test

[test] add test case for #408
Overriding method should have "virtual"

Fix warnings on OSX
add `nwsnapshot` to package tool
[test] test case for screen shot
Merge pull request #463 from owenc4a4/tool

add `nwsnapshot` to package tool
Merge pull request #464 from owenc4a4/test

[test] test case for screen shot
[test] test case for snapshot
Merge pull request #467 from owenc4a4/test

[test] test case for snapshot
[tool] fix build native node cause error on cygwin
[tool] make script runnable on linux
adding logging for our IPC messages
Fix 'Malformed json'
adding more DVLOGs
should use the correct SiteInstance for new window

Fix #469
Merge pull request #472 from RobertLowe/master

[Fix] Malformed query when using `--remote-debugging-port` flag