fixes, and my regexp searching bug fix


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- winio.c:edit_add() - Add in the necessary regfree() calls to stop nano from leaking memory like a sieve when using color syntax highlighting :-)


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added an update_color, updated edit_add, i18ned a string and changed some getopt handlers in main to mallocstrcpy


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Global flag -Y, --syntax to specify the type on the command line, if there's no good filename regex to use.  Global variable syntaxstr.  Made some errors in the rc file less fatal


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1200 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Global flag -Y, --syntax to specify the type on the command line, if there's no good filename regex to use.  Global variable syntaxstr.  Made some errors in the rc file less fatal


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- Added syntax command to .nanorc file, to allow multiple syntaxes.  New function color.c:update_color(), calls in various files.c places, syntaxtype struct, global variables syntaxes, syntaxfile_regexp and synfilematches


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- More cleanups with DISABLE flags, better free_shortcutage and free_toggle, and get rid of unnecessary variable decls with NANO_SMALL in shortcut_init() by David Benbennick


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- General: - Change from read() and write() to file streams by Jay Carlson. Allows OS to implement read and write ahead rather than making us do it.  Hopefully merged properly


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- General: - Preliminary prepend code.  This may be a bad idea, but I've been wanting it for awhile now and we'll see how bad it messes everything up.  Changes to files.c:do_writeout(), write_file()


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- Change to openfilestruct for multibuffer mode by DLR. New functions nano.c:make_new_opennode(), free_openfilestruct(), delete_opennode(), unlink_opennode(), splice_opennode(), new struct openfilestruct in nano.h


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- FreeBSD compat.  Remove KEY_DC from the delete shortcut in global.c:shortcut_init(), add case for 330 under nano.c:main()


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