Rename API to follow a new naming convention:
* XCB_CONSTANTS_UPPERCASE_WITH_UNDERSCORES
* xcb_functions_lowercase_with_underscores
* xcb_types_lowercase_with_underscores_and_suffix_t
* expand all abbreviations like "req", "rep", and "iter"

Word boundaries for the names in the protocol descriptions fall:
* Wherever the protocol descriptions already have an underscore
* Between a lowercase letter and a subsequent uppercase letter
* Before the last uppercase letter in a string of uppercase letters followed
  by a lowercase letter (such as in LSBFirst between LSB and First)
* Before and after a string of digits (with exceptions for sized types like
  xcb_char2b_t and xcb_glx_float32_t to match the stdint.h convention)

Also fix up some particular naming issues:
* Rename shape_op and shape_kind to drop the "shape_" prefix, since otherwise
  these types end up as xcb_shape_shape_{op,kind}_t.
* Remove leading underscores from enums in the GLX protocol description,
  previously needed to ensure a word separator, but now redundant.

This renaming breaks code written for the previous API naming convention.  The
scripts in XCB's tools directory will convert code written for the old API to
use the new API; they work well enough that we used them to convert the
non-program-generated code in XCB, and when run on the old program-generated
code, they almost exactly reproduce the new program-generated code (modulo
whitespace and bugs in the old code generator).

Authors: Vincent Torri, Thomas Hunger, Josh Triplett

The big change is treating numbers as separate "words" in the
translation, which leads to funny-looking names like xcb_char_2_b_t, but
makes more sense than the alternative in other situations and was
suggested on the mailing list.

This version still disagrees with Vincent's last proposed XSL, but I
think my output is now preferable. Hopefully Josh has been thinking
along the same lines.

Alan Coopersmith authored Sep 22, 2006 and Jamey Sharp committed Sep 22, 2006

(Some non-gnu makes, such as Solaris make, only recognize $< in implicit
 suffix rules, not explicit ones like this.)

This simplifies the patch for bug #8208 later.

Use an XSLT stylesheet to get a list of all the constant names.

Now handles all API changes except constant names, which are treated like type names.

Remove deprecated public API functions in preparation for 1.0 release. Xlib-specific deprecation remains.

Got "make distcheck" to work (whatever that does).

Made extensions directory persist.

Needs improvement: should not duplicate the code of every request function.

Issue 0, 1, or 2 syncs as needed and do not handle 16-bit wrap until
absolutely necessary.

The installed headers can't be relying on the presence of the internal
config.h defines, and it was breaking the xcb build for me as well due to
config.h not being included early enough.

Create a macro, XCB_SEQUENCE_COMPARE, that accepts two sequence numbers and
a comparison operator and correctly handles 32-bit wrap around.
Rewrite all ordered sequence number comparisons to use this macro.
Also, caught one error where a sequence was stored in a signed int variable.
Push out a GetInputFocus request when the sequence number does wrap at 32
bits so that applications cannot see sequence 0 (as that is an error
indicator).

xcb_types.xml into xproto.xml.