Modify build file of library mode package

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-android/": change = 17902]
Fix crash when xFace engine started in the second time 

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-android/": change = 17903]
Fix webView clearCache crash

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-android/": change = 17904]
Licensed GPLV3 to XAMSError

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-android/": change = 17906]