Removed re-usability from jXHR object (no more open, send & onreadyst…

…atechange support). Streamlined the implementation and put it back into ajax.js (removed xhr.js in the process). Went back to a more simple & direct approach to options handling (keeping much room to further minification-related optimizations). Code is cleaner, smaller & faster. Removed & edited unit tests accordingly. All build files have had xhr.js removed.

Makefile

@@ -24,7 +24,6 @@ BASE_FILES = ${SRC_DIR}/core.js\
 	${SRC_DIR}/manipulation.js\
 	${SRC_DIR}/css.js\
 	${SRC_DIR}/ajax.js\
-	${SRC_DIR}/xhr.js\
 	${SRC_DIR}/transports/jsonp.js\
 	${SRC_DIR}/transports/script.js\
 	${SRC_DIR}/transports/xhr.js\

Rakefile

@@ -22,7 +22,6 @@ base_files = %w{
   manipulation
   css
   ajax
-  xhr
   transports/jsonp
   transports/script
   transports/xhr

build.xml

@@ -63,7 +63,6 @@
 			<fileset file="src/manipulation.js" />
 			<fileset file="src/css.js" />
 			<fileset file="src/ajax.js" />
-			<fileset file="src/xhr.js" />
 			<fileset file="src/transports/jsonp.js" />
 			<fileset file="src/transports/script.js" />
 			<fileset file="src/transports/xhr.js" />