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

@@ -9,7 +9,7 @@ test_dir  = File.join( prefix, 'test' )
 # setting DIST_DIR before calling rake
 dist_dir  = ENV['DIST_DIR'] || File.join( prefix, 'dist' )
 
-base_files = %w{intro core support data queue attributes event selector traversing manipulation css ajax xhr transports/jsonp transports/script transports/xhr effects offset dimensions outro}.map { |js| File.join( src_dir, "#{js}.js" ) }
+base_files = %w{intro core support data queue attributes event selector traversing manipulation css ajax transports/jsonp transports/script transports/xhr effects offset dimensions outro}.map { |js| File.join( src_dir, "#{js}.js" ) }
 
 # Sizzle, QUnit and jQuery files/dirs
 sizzle_dir = File.join( src_dir, "sizzle" )

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" />