Setting some environment variables

We can avoid unnecessary conflict between two glib 2.0 (new one vs default) by setting env variables in bashrc.

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

export LD_INCLUDE_PATH=/usr/local/include:$LD_INCLUDE_PATH

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH