Renamed storage/innodb_plugin to storage/innobase, so that 1) it's the same

layout as we always had in trees containing only the builtin
2) win\configure.js WITH_INNOBASE_STORAGE_ENGINE still works.

storage/innobase/CMakeLists.txt:
  fix to new directory name (and like 5.1)
storage/innobase/Makefile.am:
  fix to new directory name (and like 5.1)
storage/innobase/handler/ha_innodb.cc:
  fix to new directory name (and like 5.1)
storage/innobase/plug.in:
  fix to new directory name (and like 5.1)

storage/innobase/CMakeLists.txt

@@ -23,9 +23,9 @@ IF (CMAKE_SIZEOF_VOID_P MATCHES 8)
 	SET(WIN64 TRUE)
 ENDIF (CMAKE_SIZEOF_VOID_P MATCHES 8)
 
-# Include directories under innodb_plugin
-INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/storage/innodb_plugin/include
-		    ${CMAKE_SOURCE_DIR}/storage/innodfb_plugin/handler)
+# Include directories under innobase
+INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/storage/innobase/include
+		    ${CMAKE_SOURCE_DIR}/storage/innobase/handler)
 
 # Include directories under mysql
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include
@@ -41,7 +41,7 @@ IF(MSVC AND $(WIN64))
 				    PROPERTIES COMPILE_FLAGS -Od)
 ENDIF(MSVC AND $(WIN64))
 
-SET(INNODB_PLUGIN_SOURCES	btr/btr0btr.c btr/btr0cur.c btr/btr0pcur.c btr/btr0sea.c
+SET(INNOBASE_SOURCES	btr/btr0btr.c btr/btr0cur.c btr/btr0pcur.c btr/btr0sea.c
 			buf/buf0buddy.c buf/buf0buf.c buf/buf0flu.c buf/buf0lru.c buf/buf0rea.c
 			data/data0data.c data/data0type.c
 			dict/dict0boot.c dict/dict0crea.c dict/dict0dict.c dict/dict0load.c dict/dict0mem.c
@@ -75,4 +75,4 @@ SET(INNODB_PLUGIN_SOURCES	btr/btr0btr.c btr/btr0cur.c btr/btr0pcur.c btr/btr0sea
 			ut/ut0byte.c ut/ut0dbg.c ut/ut0mem.c ut/ut0rnd.c ut/ut0ut.c ut/ut0vec.c
 			ut/ut0list.c ut/ut0wqueue.c)
 ADD_DEFINITIONS(-DHAVE_WINDOWS_ATOMICS -DINNODB_RW_LOCKS_USE_ATOMICS -DIB_HAVE_PAUSE_INSTRUCTION)
-MYSQL_STORAGE_ENGINE(INNODB_PLUGIN)
+MYSQL_STORAGE_ENGINE(INNOBASE)

storage/innobase/Makefile.am

@@ -229,7 +229,7 @@ noinst_HEADERS=		\
 			mem/mem0dbg.c
 
 EXTRA_LIBRARIES=	libinnobase.a
-noinst_LIBRARIES=	@plugin_innodb_plugin_static_target@
+noinst_LIBRARIES=	@plugin_innobase_static_target@
 libinnobase_a_SOURCES=	\
 			btr/btr0btr.c			\
 			btr/btr0cur.c			\
@@ -327,13 +327,13 @@ libinnobase_a_SOURCES=	\
 libinnobase_a_CXXFLAGS=	$(AM_CFLAGS)
 libinnobase_a_CFLAGS=	$(AM_CFLAGS)
 
-EXTRA_LTLIBRARIES=	ha_innodb_plugin.la
-pkgplugin_LTLIBRARIES=	@plugin_innodb_plugin_shared_target@
+EXTRA_LTLIBRARIES=	ha_innodb.la
+pkgplugin_LTLIBRARIES=	@plugin_innobase_shared_target@
 
-ha_innodb_plugin_la_LDFLAGS=	-module -rpath $(pkgplugindir)
-ha_innodb_plugin_la_CXXFLAGS=	$(AM_CFLAGS) $(INNODB_DYNAMIC_CFLAGS)
-ha_innodb_plugin_la_CFLAGS=	$(AM_CFLAGS) $(INNODB_DYNAMIC_CFLAGS)
-ha_innodb_plugin_la_SOURCES=	$(libinnobase_a_SOURCES)
+ha_innodb_la_LDFLAGS=	-module -rpath $(pkgplugindir)
+ha_innodb_la_CXXFLAGS=	$(AM_CFLAGS) $(INNODB_DYNAMIC_CFLAGS)
+ha_innodb_la_CFLAGS=	$(AM_CFLAGS) $(INNODB_DYNAMIC_CFLAGS)
+ha_innodb_la_SOURCES=	$(libinnobase_a_SOURCES)
 
 EXTRA_DIST=		CMakeLists.txt plug.in \
 			pars/make_bison.sh pars/make_flex.sh \

storage/innobase/handler/ha_innodb.cc

@@ -10009,7 +10009,7 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   NULL
 };
 
-mysql_declare_plugin(innodb_plugin)
+mysql_declare_plugin(innobase)
 {
   MYSQL_STORAGE_ENGINE_PLUGIN,
   &innobase_storage_engine,