Minor changes for test.cpp

This pull request contains minor changes. It's better to use the default cursor theme and a general cursor name, because this way the test program won't fail if "redglass" theme isn't installed on the system. Using arrays instead of vectors is only a cosmetic change. I thought it would be nice to use this feature of C++11 here, since the EGL configuration arrays are static, so "array" is semantically better here than "vector".