1-Add the installation of a link to Dropbox folder (when existing) in Cygwin home
folder in install.sh.
1-Orthographic correction in comment of install.sh
1-Removed autojump installation from install.sh.
1-Added settings for org-mode (Emacs).
1-Bound C-c M-<left>/<right>/... to move between windows, to replace the
normal M-<left>/... while in org-mode (as it is bound to a different
behavior) (Emacs).