Fix 'inconsistent line endings' when autoconf 2.63 is used

Fix 'inconsistent line endings' when autoconf 2.63 is used

Attempt to make configure script regeneration 'safe' using autoconf 2.63, which embeds a bare CR into the script, thus making Subversion complain about inconsistent line endings

This commit changes the MIME type of the configure script to be 'binary' thus making Subversion no longer inspect line endings, and as a bonus 'svn diff' will no longer try to generate diff output for it, which is not generally useful anyway.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@190721 65c4cc65-6c06-0410-ace0-fbb531ad65f3