submit/trunk/20130417.061026

[Version] 0.1.29
[Project] GT-I8800
[Title] Release wrt-installer_0.1.29
[Issue#] N/A
[Issue#]       N/A
[Bug]          Temporary coe
[Cause]        N/A
[Solution]     Remove it
[Verification] Install widget and unisntall. Iconshould appear and disappear
[Issue#] LINUXWRT-211
[Bug] N/A
[Cause] N/A
[Solution] Remove issues
[Verification] Build wrt-installer repository
[Issue#] LINUXWRT-234
[Problem] Too many prevent warnings
[Cause] N/A
[Solution] Remove them
[Verification] Build wrt-installer repository
[Issue#] N/A
[Problem] fail during saving certificate.
[Cause] there is bug at set certificate.
[Solution] null check during set certificate.
[SCMRequest] N/A