add pthread link on windows

Signed-off-by: xiehuc <xiehuc@gmail.com>
support build on win for 0.3.0

Signed-off-by: xiehuc <xiehuc@gmail.com>
update xcode project to build with framework

Signed-off-by: xiehuc <xiehuc@gmail.com>
update icon for v0.3.0

Signed-off-by: xiehuc <xiehuc@gmail.com>
Merge branch 'dev' of github.com:xiehuc/pidgin-lwqq
fix package on windows

Signed-off-by: xiehuc <xiehuc@gmail.com>