erp5: Update tesseract to 3.04.01 because of compilation error.

Probably due to GCC6:
char_set.cpp:68:12: error: cannot convert 'bool' to 'tesseract::CharSet*' in return

Also update leptonica to 1.73 (>= 1.71 is required).

component/leptonica/buildout.cfg

@@ -11,13 +11,10 @@ extends =
 
 [leptonica]
 recipe = slapos.recipe.cmmi
-url = http://leptonica.googlecode.com/files/leptonica-1.68.tar.gz
-md5sum = 5cd7092f9ff2ca7e3f3e73bfcd556403
+url = http://www.leptonica.org/source/leptonica-1.73.tar.gz
+md5sum = 092cea2e568cada79fff178820397922
 configure-options =
   --disable-static
-patch-options = -p1
-patches =
-  ${:_profile_base_location_}/leptonica-1.69-zlib-include.patch#cff3dc942075190939b407c38e0d3201
 environment =
   CPPFLAGS=-I${zlib:location}/include -I${libjpeg:location}/include -I${libpng:location}/include -I${libtiff:location}/include -I${webp:location}/include -I${giflib:location}/include
   LDFLAGS=-L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${libpng:location}/lib -Wl,-rpath=${libpng:location}/lib -L${libtiff:location}/lib -Wl,-rpath=${libtiff:location}/lib -L${webp:location}/lib -Wl,-rpath=${webp:location}/lib -L${giflib:location}/lib -Wl,-rpath=${giflib:location}/lib

component/leptonica/leptonica-1.69-zlib-include.patch

-This patch is originally taken from:
-
-http://leptonica.googlecode.com/issues/attachment?aid=560001000&name=zlib-include.patch&token=m2sugSYxB4xwAuNgrKXyHTxBYNg%3A1337345966091
-
-To fix the following issue with leptonica:
-
-http://code.google.com/p/leptonica/issues/detail?id=56
-
-diff -Nurd -x'*~' leptonica-1.68.orig/src/pngio.c leptonica-1.68/src/pngio.c
---- leptonica-1.68.orig/src/pngio.c	2011-02-01 00:41:12.000000000 -0500
-+++ leptonica-1.68/src/pngio.c	2011-07-09 09:17:17.000000000 -0400
-@@ -108,6 +108,10 @@
- 
- #include "png.h"
- 
-+#ifdef HAVE_LIBZ
-+#include "zlib.h"
-+#endif
-+
- /* ----------------Set defaults for read/write options ----------------- */
-     /* strip 16 bpp --> 8 bpp on reading png; default is for stripping */
- static l_int32   var_PNG_STRIP_16_TO_8 = 1;

component/tesseract/buildout.cfg

@@ -14,13 +14,8 @@ parts =
 
 [tesseract]
 recipe = slapos.recipe.cmmi
-url = http://tesseract-ocr.googlecode.com/files/tesseract-3.01.tar.gz
-md5sum = 1ba496e51a42358fb9d3ffe781b2d20a
-patch-options =
-  -p1
-patches =
-  ${:_profile_base_location_}/tesseract-3.00-gcc-4.7-build.patch#ca80db3ec489c547b03f3ee48879c1b1
-  ${:_profile_base_location_}/tesseract-3.01-remove-bom.patch#2e691858cb492b7c17d23bf0912b3d24
+url = https://github.com/tesseract-ocr/tesseract/archive/3.04.01.tar.gz
+md5sum = 645a21effcf2825a3473849d72a7fd90
 pre-configure =
   libtoolize -f -c
   aclocal -I ${libtool:location}/share/aclocal -I config

component/tesseract/tesseract-3.00-gcc-4.7-build.patch

---- tesseract-3.00/viewer/svutil.cpp.old	2012-04-11 09:34:26.168608940 +0200
-+++ tesseract-3.00/viewer/svutil.cpp	2012-04-11 09:34:46.108565692 +0200
-@@ -21,6 +21,7 @@
- // thread/process creation & synchronization and network connection.
- 
- #include <stdio.h>
-+#include <unistd.h>
- #ifdef WIN32
- #include <windows.h>
- #include <winsock.h>

component/tesseract/tesseract-3.01-remove-bom.patch

-The patch below removes a utf-8 BOM mark.
-
-Avoid touching it as the BOM is invisible, and copy/pasting might not work.
-
-It is needed because old compilers treat the BOM as garbage instead of
-whitespace.
-
---- tesseract-3.01/ccutil/strngs.h.orig	2012-05-24 15:13:22.743808379 +0200
-+++ tesseract-3.01/ccutil/strngs.h	2012-05-24 15:16:54.468858282 +0200
-@@ -1,4 +1,4 @@
--/**********************************************************************
-+/**********************************************************************
-  * File:        strngs.h  (Formerly strings.h)
-  * Description: STRING class definition.
-  * Author:					Ray Smith