* [ceres, zziplib] fixes for building on non-windows systems
* [jxrlib, zziplib] other fixes for non-windows systems
* [zziplib] fix CMakeLists.txt for non win32 platforms, there were missing exported headers
* [ceres] Fix targets path
* [ceres] Fix typo
* [ceres] trigger CI build
* [ceres] use proper glog/gflags targets
