Fix requirements.txt problem

MANIFEST.in

@@ -1 +1,3 @@
 recursive-exclude tests/output *
+include requirements.txt
+include test_requirements.txt

RELEASE_NOTES.rst

@@ -67,6 +67,10 @@ Changes
 Release candidates
 ------------------
 
+-  rc7:
+
+   - fix error when installing direct from pip, "no such file 'requirements.txt'"
+
 -  rc6:
 
    - dropped libxml2 (Python lxml) since Python 3's internal XML parser is sufficient

ocrmypdf/main.py

@@ -103,7 +103,7 @@ check_pil_encoder('zlib', 'PNG')
 parser = cmdline.get_argparse(
     prog="ocrmypdf",
     description="Generate searchable PDF file from an image-only PDF file.",
-    version='3.0rc6',
+    version='3.0rc7',
     fromfile_prefix_chars='@',
     ignored_args=[
         'touch_files_only', 'recreate_database', 'checksum_file_name',

setup.py

@@ -179,7 +179,7 @@ tests_require = open('test_requirements.txt').read().splitlines()
 
 setup(
     name='ocrmypdf',
-    version='3.0rc6',  # also update: release notes, main.py
+    version='3.0rc7',  # also update: release notes, main.py
     description='OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched',
     url='https://github.com/fritz-hh/OCRmyPDF',
     author='James. R. Barlow',