autotools: build-fix needed due to new scintilla revision

git-svn-id: https://svn.code.sf.net/p/codeblocks/code/trunk@9228 2a5c6006-c6dd-42ca-98ab-0921f2732cef
autotools: rename deprecated configure.in to configure.ac

git-svn-id: https://svn.code.sf.net/p/codeblocks/code/trunk@9229 2a5c6006-c6dd-42ca-98ab-0921f2732cef
autotools: replace deprecated INCLUDES with AM_CPPFLAGS; note: per target *_CPPFLAGS override AM_CPPFLAGS, so we must be careful here.

git-svn-id: https://svn.code.sf.net/p/codeblocks/code/trunk@9230 2a5c6006-c6dd-42ca-98ab-0921f2732cef
* debugger: Fix a crash when removing at least 3 targets one after another from the project

git-svn-id: https://svn.code.sf.net/p/codeblocks/code/trunk@9231 2a5c6006-c6dd-42ca-98ab-0921f2732cef