- Added .o files to .gitignore.
- Renamed parser utility in doxygen main page (knot-zoneparser)

1. Include <config.h> at the top of each .c
2. Remove "common.h" and config.h from all .h
3. Include "common.h" at the top of user includes in each .c

The common.h was used inconsistently (either it's common or not).

That allows tree things (among others):

1. to have headers with conflicting names (dnslib/debug.h, other/debug.h)
2. to have only -I. (or no include at all)
3. to possibly move include files to separate directory $(topdir)/includes/

Removed tokens from descriptors in dnslib.

'resource.sh' generates includable resource files from any binary/text file.
'Makefile' is updated to generate resource files
'dnslib_response_tests.c' loads data from embedded resource files

Closes #250

refs #233

Conflicts:
	src/tests/dnslib/dnslib_response_tests.c

Refs #233

Conflicts:
	src/zoneparser/main.c
	src/zoneparser/zoneparser.c
	src/zoneparser/zoneparser.h

+ added missing file dnslib/utils.c

- Some util functions moved from both parser and dnslib descriptor
  to utils.h/c
  - strlcpy, generic lookup table
- removed unused function from parser-util.c (inet_ntop())
- removed global var totalerrors from zone parser, changed function
  zone_read() to return the count of errors.

closes #280

Refs #233

Added doxygen comment for dnslib_wireformat_size() - used in tests - might be useful somewhere else too.

Closes #233

Refs #233

Refs #233

Refs #233

Refs #233

Refs #233

Refs #233

Refs #233

Refs #280

Refs #280