blzr: New driver 'blzr'

New driver for Q* UPSes.
Based on blazer, usbhid-ups and voltronic driver.

This might address Issue #25
blzr: Cosmetic changes
blzr: Fix switch/case

Forgot to break at the end of the case
blzr: Improve developer manual

Add note on how to group items in blzr2nut array.
blzr: Add Mecer subdiver (blzr protocol=mecer)

A subdriver covering an idiom similar to the one used by the megatec subdriver, but with these peculiarities:
- if a command/query is rejected or invalid, the UPS will reply '(NAK\r'
- if a command succeeds, the UPS will reply '(ACK\r'
blzr: Fix blzr_blazer-common.{c,h} header comments
blzr: Remove duplicates in the testing struct
blzr: Cosmetic changes
blzr: Fix compile-time error

Reference: http://lists.alioth.debian.org/pipermail/nut-upsdev/2013-November/006549.html
blzr: Fix log message
Revert "Merge branch 'voltronic-driver'"

This reverts commit de07fc7f5e7f68b91507b2bf3d4d3b92b774c3ed, reversing
changes made to a074844f88ca352780dd881b5fa3c435832d165e.

The voltronic funtionality will be a subdriver of the new blazer driver.
nutdrv_qx: rename 'blzr' driver to 'nutdrv_qx'

Reference: http://lists.alioth.debian.org/pipermail/nut-upsdev/2013-November/006555.html
nutdrv_qx: remove superfluous indications from the HCL
nutdrv_qx: readd HCL's items lost with the revert of the voltronic merge
nutdrv_qx: fix cross links in manpage

Remove links to voltronic manuals.
Fix links to blazer manuals.
Add nutdrv_qx to .gitignore files and remove voltronic from them
Add nutdrv_qx (blzr) / remove voltronic driver.

Merge branch 'blzr_integration_rebased'

Conflicts:
	docs/man/Makefile.am
Update download page

 * Re-added link to Buildbot snapshot generator
 * Updated a few links
Update links to related projects
GitHub issues can also be used to report HCL updates