.vimrc: set soft tabstop = 2

This lets the backspace key "treat 2 space characters as a tab".

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
.bashrc - add storm binary folder to PATH

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
.bashrc - Fix clang error unknown argument: "-mno-fused-madd"

http://stackoverflow.com/questions/22313407/clang-error-unknown-argument-mno-fused-madd-python-package-installation-fa

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
.bashrc - export DOCKER_HOST environment variable

for the Docker client to connect to the Docker daemon when using
boot2docker.

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
.bashrc - Prepend GNU Make folder to PATH

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>