- PG doc updates

- pypostgresql has 15 errors, 3 failures, this probably
puts it in the "yes" as opposed to the "partial" support
category.  [ticket:1850]

doc/build/dbengine.rst

@@ -103,7 +103,7 @@ cx_oracle_                 ``oracle+cx_oracle``\*       yes          development
 pg8000_                    ``postgresql+pg8000``        yes          yes           no           yes                yes
 `PostgreSQL JDBC Driver`_  ``postgresql+zxjdbc``        no           no            yes          yes                yes
 psycopg2_                  ``postgresql+psycopg2``\*    yes          development   no           yes                yes
-pypostgresql_              ``postgresql+pypostgresql``  no           partial       no           yes                yes
+pypostgresql_              ``postgresql+pypostgresql``  no           yes           no           yes                yes
 **SQLite**
 pysqlite_                  ``sqlite+pysqlite``\*        yes          yes           no           yes                yes
 sqlite3_                   ``sqlite+pysqlite``\*        yes          yes           no           yes                yes
@@ -154,6 +154,7 @@ Dialect names include the identifying name of the SQLAlchemy dialect which inclu
     pg_db = create_engine('postgresql://scott:tiger@localhost/mydatabase')
     pg_db = create_engine('postgresql+psycopg2://scott:tiger@localhost/mydatabase')
     pg_db = create_engine('postgresql+pg8000://scott:tiger@localhost/mydatabase')
+    pg_db = create_engine('postgresql+pypostgresql://scott:tiger@localhost/mydatabase')
 
     # postgresql on Jython
     pg_db = create_engine('postgresql+zxjdbc://scott:tiger@localhost/mydatabase')

doc/build/reference/dialects/postgresql.rst

@@ -57,6 +57,11 @@ psycopg2 Notes
 .. automodule:: sqlalchemy.dialects.postgresql.psycopg2
 
 
+py-postgresql Notes
+--------------------
+
+.. automodule:: sqlalchemy.dialects.postgresql.pypostgresql
+
 pg8000 Notes
 --------------
 

lib/sqlalchemy/dialects/postgresql/pg8000.py

@@ -4,7 +4,7 @@ Connecting
 ----------
 
 URLs are of the form
-`postgresql+pg8000://user:password@host:port/dbname[?key=value&key=value...]`.
+``postgresql+pg8000://user:password@host:port/dbname[?key=value&key=value...]``.
 
 Unicode
 -------

lib/sqlalchemy/dialects/postgresql/psycopg2.py

@@ -17,7 +17,7 @@ By default, the Psycopg2 driver uses the ``psycopg2.extensions.UNICODE`` extensi
 Connecting
 ----------
 
-URLs are of the form `postgresql+psycopg2://user:password@host:port/dbname[?key=value&key=value...]`.
+URLs are of the form ``postgresql+psycopg2://user:password@host:port/dbname[?key=value&key=value...]``.
 
 psycopg2-specific keyword arguments which are accepted by :func:`~sqlalchemy.create_engine()` are:
 

lib/sqlalchemy/dialects/postgresql/pypostgresql.py

@@ -3,7 +3,7 @@
 Connecting
 ----------
 
-URLs are of the form `postgresql+pypostgresql://user@password@host:port/dbname[?key=value&key=value...]`.
+URLs are of the form ``postgresql+pypostgresql://user@password@host:port/dbname[?key=value&key=value...]``.
 
 
 """

lib/sqlalchemy/orm/interfaces.py

@@ -278,7 +278,7 @@ class MapperExtension(object):
         guarantee that an UPDATE statement will be issued (although you can
         affect the outcome here).
         
-         To detect if the column-based attributes on the object have net
+        To detect if the column-based attributes on the object have net
         changes, and will therefore generate an UPDATE statement, use
         ``object_session(instance).is_modified(instance,
         include_collections=False)``.