Improve event counter documentation.

Minor fixes related to namings.

DEVSIX-2932

Autoported commit.
Original commit hash: [b6ddf5d33]

Author: ars18wrw

itext/itext.kernel/itext/kernel/counter/EventCounterHandler.cs

@@ -73,7 +73,7 @@ namespace iText.Kernel.Counter {
     /// and register it with
     /// <see cref="SimpleEventCounterFactory"/>
     /// like this:
-    /// <c>EventCounterManager.getInstance().register(new SimpleEventCounterFactory(new SystemOutEventCounter());</c>
+    /// <c>EventCounterHandler.getInstance().register(new SimpleEventCounterFactory(new SystemOutEventCounter());</c>
     /// <see cref="SystemOutEventCounter"/>
     /// is just an example of a
     /// <see cref="EventCounter"/>

itext/itext.kernel/itext/kernel/counter/IEventCounterFactory.cs

@@ -55,7 +55,7 @@ namespace iText.Kernel.Counter {
     /// and creates a counter for every reader or writer class.
     /// <para />
     /// You can implement your own counter factory and register it like this:
-    /// <c>EventCounterManager.getInstance().registerCounter(new SystemOutEventCounterFactory());</c>
+    /// <c>EventCounterHandler.getInstance().register(new SystemOutEventCounterFactory());</c>
     /// <para />
     /// <see cref="SystemOutEventCounterFactory"/>
     /// is just an example of

itext/itext.kernel/itext/kernel/log/ICounterFactory.cs

@@ -55,7 +55,7 @@ namespace iText.Kernel.Log {
     /// and creates a counter for every reader or writer class.
     /// <para />
     /// You can implement your own counter factory and register it like this:
-    /// <c>CounterManager.getInstance().registerCounter(new SystemOutCounterFactory());</c>
+    /// <c>CounterManager.getInstance().register(new SystemOutCounterFactory());</c>
     /// <para />
     /// <see cref="SystemOutCounterFactory"/>
     /// is just an example of

port-hash

@@ -1 +1 @@
-9d1c931fa63bcf5441d9c6ff9f4d6e3b75876e20
+b6ddf5d33915bc7a6e4a1f67810021a4746386bd