Added Manual page and fixed documentation

manual/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Creates and installs manual page
+
+execute_process(
+    COMMAND ${CMAKE_COMMAND} -E create_symlink ${CMAKE_CURRENT_SOURCE_DIR}/nominatim.1 ${CMAKE_CURRENT_BINARY_DIR}/nominatim.1
+)
+
+configure_file(${PROJECT_SOURCE_DIR}/manual/create-manpage.tmpl create_manpage.py)
+
+find_program(ARGPARSEMANPAGE argparse-manpage)
+
+ADD_CUSTOM_TARGET(manpage
+    COMMAND ${ARGPARSEMANPAGE} --pyfile ${CMAKE_CURRENT_BINARY_DIR}/create_manpage.py --function get_parser > nominatim.1
+)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/nominatim.1 DESTINATION share/man/man1 )

manual/create-manpage.tmpl

@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+import sys
+import os
+
+sys.path.append('@PROJECT_SOURCE_DIR@')
+
+from nominatim.cli import get_set_parser
+
+def get_parser():
+    parser = get_set_parser(phpcgi_path='@PHPCGI_BIN@')
+
+    return parser.parser