New aliases, clean-up and add right diff tool for merges etc.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
Add .ctags file.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
Add .bashrc and .bash_profile files.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>