[bash] Clean and update bashrc_export
[bash] Clean and update bashrc_export

- Add option to change git editor. It avoids vim error message when
  you're using the .vimrc in dotfiles.

- Add option to configure num threads for openblas. Pill to remeber
  how-to setup openblas.

- Remove export for intel compiler or extra/similar config.

escorciav/linux-utils,escorciav/linux-utils