man: Add a missing colon
Add a format_down example for battery
Add hide_seconds option

fixes: #1134
make release: install the README file (Thanks myou)
i3status: Bugfix: Reading multiple temperature sensors not possible

This patch inlines the creation of the thermal zone string in order
to force computation on each invocation. This is necessary to be able
to read the values of several temperature sensors.
i3status: Allow customization of module separator

This patch adds the ability to customize the separator that is placed
between modules.

Specifically this patch:

* adds the "separator" general directive
* moves the definition of the default separator for the different
  output formats (excluding color formatting) to src/i3status.c
* updates the SEC_CLOSE_MAP macro to disable the separator for the
  i3bar output format if the separator directive dictates so
* changes print_seperator() in src/output.c to take a separator
  parameter in order to disable the output of the separator if
  the separator is empty and to use the provided separator
  otherwise
* updates the manpage to explain the new directive
Typo in function name

Fixes the typo in print_seperator()
add mpd implementation
update indentation, add man
update readme
fix debug mode printf
fix mpd conf color fail
Add optimisation flag to makefile
Add .gitconfig rebase alias
Re-commiting "mpd normalize to format_up format_down" after correct rebase