Use deprecated-removed directive, clean up a few markup issues around

deprecated directives.

Doc/library/formatter.rst

@@ -5,7 +5,7 @@
    :synopsis: Generic output formatter and device interface.
    :deprecated:
 
-.. deprecated:: 3.4
+.. deprecated-removed:: 3.4 3.6
    Due to lack of usage, the formatter module has been deprecated and is slated
    for removal in Python 3.6.
 

Doc/library/imp.rst

@@ -262,12 +262,12 @@ that circular imports work without any deadlocks.
    exception is made for circular imports, which by construction have to
    expose an incomplete module object at some point.
 
-.. versionchanged:: 3.3
+   .. versionchanged:: 3.3
       The locking scheme has changed to per-module locks for
       the most part.  A global import lock is kept for some critical tasks,
       such as initializing the per-module locks.
 
-.. deprecated:: 3.4
+   .. deprecated:: 3.4
 
 
 .. function:: acquire_lock()
@@ -282,12 +282,12 @@ that circular imports work without any deadlocks.
 
    On platforms without threads, this function does nothing.
 
-.. versionchanged:: 3.3
+   .. versionchanged:: 3.3
       The locking scheme has changed to per-module locks for
       the most part.  A global import lock is kept for some critical tasks,
       such as initializing the per-module locks.
 
-.. deprecated:: 3.4
+   .. deprecated:: 3.4
 
 
 .. function:: release_lock()
@@ -295,12 +295,12 @@ that circular imports work without any deadlocks.
    Release the interpreter's global import lock. On platforms without
    threads, this function does nothing.
 
-.. versionchanged:: 3.3
+   .. versionchanged:: 3.3
       The locking scheme has changed to per-module locks for
       the most part.  A global import lock is kept for some critical tasks,
       such as initializing the per-module locks.
 
-.. deprecated:: 3.4
+   .. deprecated:: 3.4
 
 
 The following constants with integer values, defined in this module, are used

Doc/library/pkgutil.rst

@@ -58,7 +58,7 @@ support.
 
    .. deprecated:: 3.3
       This emulation is no longer needed, as the standard import mechanism
-      is now fully PEP 302 compliant and available in :mod:`importlib`
+      is now fully PEP 302 compliant and available in :mod:`importlib`.
 
 
 .. class:: ImpLoader(fullname, file, filename, etc)
@@ -67,7 +67,7 @@ support.
 
    .. deprecated:: 3.3
       This emulation is no longer needed, as the standard import mechanism
-      is now fully PEP 302 compliant and available in :mod:`importlib`
+      is now fully PEP 302 compliant and available in :mod:`importlib`.
 
 
 .. function:: find_loader(fullname)

Doc/library/site.rst

@@ -38,7 +38,7 @@ Unix and Macintosh).  For each of the distinct head-tail combinations, it sees
 if it refers to an existing directory, and if so, adds it to ``sys.path`` and
 also inspects the newly added path for configuration files.
 
-.. deprecated:: 3.4
+.. deprecated-removed:: 3.4 3.5
    Support for the "site-python" directory will be removed in 3.5.
 
 If a file named "pyvenv.cfg" exists one directory above sys.executable,