fix the file path of user-agent-app test
add test case for crash when reloading with devtool opened
[README] update for 0.7.3
write a python script to generate tarball
bump version to 0.7.4-pre
set fds to be closed in child process spawned by Node

Fix #1096
[WIN] No need to get IPC fd

fix build error for previous commit
Fix 583: support for color chooser
fix color chooser for windows
fix color chooser for mac
Fix #1112: App.dataPath should be a string
implement AllowCertificateError

Fix #1103: Ssl certificate errors should
report error immediately, not time out
strip linux binary on dist
#1095: fix crash on accessing object in new instance
Fix #904: support 'ignore-certificate-errors' in some cases
Merge pull request #1090 from richardcypher/reloadcrash

[test]add test case for crash when reloading with devtool opened
Merge pull request #1089 from richardcypher/fixuseragent

[test]fix the file path of user-agent-app test
Merge pull request #1100 from richardcypher/makeheader

[tools]write a python script to generate tarball
support document.cookie for app protocol

part of req for #1012
support filesys api for app protocol