• Fixed argmatcher lookup to be more strict, like in Clink 0.4.9 (match exact names, or name plus an extension from %PATHEXT%).
• Backward compatibility:
  • Most things should work now.
  • Dropping the new Clink on top of the vendor\clink directory in Cmder seems to work -- but make a backup before you try this at home!
• API changes:
  • Added log.info() function.
  • Added Clink version numbers in clink.version_major, etc.
  • Added _argmatcher:getwordbreakinfo() callback; removed _argmatcher:setprefixincluded() (it was a mess, and it was new to v1.x, so there's no compatibility concern with removing it).
  • Deprecated _argmatcher:setflagprefix(); now it happens automagically when using _argmatcher:addflags().
  • Introduced several deprecated functions to support backward compatibility.
• Improvements to Lua debugger:
  • Added lua.traceback_on_error, lua.break_on_error, and lua.break_on_traceback settings to make debugging script errors easier.
  • Made pause() consistent about pausing in the caller (rather than sometimes inside the pause command itself).
  • The debugger automatically shows the stack trace when entering debug mode, and on every pause.
  • Show 3 lines of source context by default.
  • The help list is sorted now.
  • Fixed the set command in the debugger to behave as documented.