Fixes#6630
In org-agenda-mode, make the org-agenda-refile and
org-agenda-clock-cancel bindings consistent with org-refile and
org-clock-cancel.
In org-agenda-transient-state, make the refile, set tags, clock in,
clock out, and clock cancel bindings consistent with their org-mode
and org-agenda-mode equivalents.
In org-capture-mode, make the org-capture-refile binding the same as
the org-agenda-refile and org-refile.
SPC p o was for projectile-multi-occur which is not really useful given
the alternative provided by Spacemacs
If this binding is really important we can consider adding it back
on SPC p O or find another way to integrate multi-occur in Spacemacs.
org-reveal is an extension to org mode that allows exporting of org files as
reveal.js presentations. Since not everyone needs this functionality, the
loading of the package is controlled via the `org-enable-reveal-js` switch,
which, if set to `t` would load the package.
