Removed errorThrown test for 404 responses seeing as Safari 3.x XHR sets the statusText as "OK" rather than "Not Found".

Fixes potential collisions between jsonp requests from different jQuery instances by prefixing the jsonp callback name with the jQuery expando rather than with "jsonp".

Use the original element/fragment as the last item to be appended to the document instead of the first in order to prevent missing elements when appending to multiple elements. Fixes #8070.

Compatibility fixes in ajax: exceptions are no longer promoted to strings before being given to callbacks. Updated misleading comment in conversion code.

Actually does what https://github.com/jquery/jquery/commit/bab8079593913dbc689404aa4e83c46b9b4c9355 promised: passes the jXHR as the third argument of prefilters and transport factories. Comitted for completness even if if backs this out in the end and only land in 1.5.1.

Fix Makefile to use plain sed agin. Remove unicode trickery. Thanks to danheberden and gnarf for figuring out why it previously faild on Mac OS X.

Make sure that init is run before jquery is built (avoiding weird warnings when running 'make jquery' or 'make min'). Additionally only attempt to run JSLint or the minifier if NodeJS is installed (avoiding a weird warning when you first run 'make' or 'make all').

Fixes #5866. Issue number in previous commit was wrong both in comments and commit message. See https://github.com/jquery/jquery/commit/0e5b341cc0f3f9bf0f6659e09704f2267cfdfdba for previous commit.

Fixes #5856. Adds document protocol at the beginning of URLs without protocol (thanks go to skrings for the initial pull request). Simplifies cross-domain detection regexp and logic as a consequence. Also took the opportunity to remove an unused variable. Unit test added.

Fixes #8054 by reverting feature enhancement 5812 (4920). Regexps no longer searches for %3F in url or data to find jsonp callback placeholders.

This reverts commit 6d358c0c.

Makes prefilters and transport inspection more robust and uses better variable names for readability.

Revised internal implementation of ajaxPrefilter() and ajaxTransport(). Everything is shorter and more efficient now. Also fixes a couple spacing issues that remained.

Fixes some coding style issues in core.js. In jQuery.fn.ready(), simplifies the whole code (for better backward compatibility) and removes redefinition of the function itself (in order not to clash with proxying). Also, in jQuery.when(), removes unnecessary closure and early rejection test and makes use of then instead of done/fail (better interoperability).

Re-organizes ajax.js: prefilters and transports are no longer stored in ajaxSettings (their structure is not handled correctly by extend() and was causing some overhead when constructing the final options map in ajax()); base function for ajaxPrefilter and ajaxTransport has been renamed and split in two (one for inspection, one for addition); response/dataType determination and data conversion logics have been externalized from the ajax() internal callback; data conversion no longer sets responseXXX fields; some minor re-formatting and simplifications.

Merge branch 'fix-7398-frameset-docs' of https://github.com/dmethvin/jquery into dmethvin-fix-7398-frameset-docs