Debian: Include xmppsc-client library via target link method.
Debian: Remove dependencies from space_control, as they will be included via the installed library.
Debian: Change include directives to system includes.
Verbosity: Removed obsolete console debug messages.
Verbosity: DEBUG directives around console output.

Use #define DEBUG to get debug output.
Merge pull request #25 from penguineer/verbosity

Verbosity: regulate the cout debug messages.
Fix #26: Option parsing fails on RPi

getopt has an int return value
It seems I used an old/wrong man page, however http://linux.about.com/library/cmd/blcmdl3_popt.htm states that
poptGetNext returns an int instead of char. This solution has been tested on RPi.
Merge pull request #27 from penguineer/issue26

Fix #26: Option parsing fails on RPi
Fix #27: Another DEBUG message.
Merge pull request #29 from penguineer/issue27

Fix #27: Another DEBUG message.
Merge pull request #24 from penguineer/debianlib

Use the debian lib in i3c-cli and i3c-client
[REVIEW] Daemon: Storing PIDs is always successful when no path given.

This follows the logic of having no PID file when there is no PID path, i.e.
the PID is virtually stored in the sense that storing did not fail.