Update User Guide regarding renamed and new extensions

Issue: #232

Author: sbrannen

documentation/src/docs/asciidoc/extensions.adoc

@@ -85,6 +85,7 @@ initialization methods on the test instance, etc.
 For concrete examples, consult the source code for the `{MockitoExtension}` and the
 `{SpringExtension}`.
 
+
 === Parameter Resolution
 
 `{MethodParameterResolver}` is an `Extension` strategy for dynamically resolving
@@ -98,25 +99,29 @@ resolved by _name_, _type_, _annotation_, or any combination thereof. For concre
 consult the source code for `{CustomTypeParameterResolver}` and
 `{CustomAnnotationParameterResolver}`.
 
+
 === Test Lifecycle Callbacks
 
 The following interfaces define the APIs for extending tests at various points in the
 test execution lifecycle. Consult the Javadoc for each of these in the
-`{extension-api-package}` package.
+`{extension-api-package}` package for further details.
 
-* `BeforeEachExtensionPoint`
-* `AfterEachExtensionPoint`
-* `BeforeAllExtensionPoint`
-* `AfterAllExtensionPoint`
+* `BeforeAllCallback`
+* `AfterAllCallback`
+* `BeforeEachCallback`
+* `AfterEachCallback`
+* `BeforeTestMethodCallback`
+* `AfterTestMethodCallback`
 
 Note that extension developers may choose to implement any number of these interfaces
 within a single extension. Consult the source code of the `{SpringExtension}` for a
 concrete example.
 
+
 === Exception Handling
 
-`{ExceptionHandlerExtensionPoint}` defines the API for `Extensions` that wish to _react to
-exceptions_ thrown in a test.
+`{ExceptionHandler}` defines the API for `Extensions` that wish to handle exceptions
+thrown from tests.
 
 The following example shows an extension which will swallow all instances of `IOException`
 but rethrow any other type of exception:
@@ -129,14 +134,12 @@ include::{testDir}/example/exception/IgnoreIOExceptionExtension.java[tags=user_g
 ----
 
 
-
 === Keeping State in Extensions
 
 Usually, an extension is instantiated only once. So the question becomes relevant: How do you keep the state
 from one invocation of an extension point to the next? ...
 
 
-
 === Additional Planned Extensions
 
 Several additional extensions are planned, including but not limited to the following:

documentation/src/docs/asciidoc/index.adoc

@@ -28,7 +28,7 @@ Stefan Bechtold; Sam Brannen; Johannes Link; Matthias Merdes; Marc Philipp
 :CustomTypeParameterResolver:       {master-branch}/junit-tests/src/test/java/org/junit/gen5/engine/junit5/execution/injection/sample/CustomTypeParameterResolver.java[CustomTypeParameterResolver]
 :Disabled:                          {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/Disabled.java[@Disabled]
 :DisabledCondition:                 {master-branch}/junit5-engine/src/main/java/org/junit/gen5/engine/junit5/extension/DisabledCondition.java[DisabledCondition]
-:ExceptionHandlerExtensionPoint:    {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/extension/ExceptionHandlerExtensionPoint.java[ExceptionHandlerExtensionPoint]
+:ExceptionHandler:                  {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/extension/ExceptionHandler.java[ExceptionHandler]
 :ExtendWith:                        {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/extension/ExtendWith.java[@ExtendWith]
 :ExtensionRegistrar:                {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/extension/ExtensionRegistrar.java[ExtensionRegistrar]
 :InstancePostProcessor:             {master-branch}/junit5-api/src/main/java/org/junit/gen5/api/extension/InstancePostProcessor.java[InstancePostProcessor]