add index to time sent in EFCLientMessage, so we can retrieve faster in context view

set the maximum height of the
add link to profile on client chat
move change history into a seperate service
move around AC penalty processing

SharedLibraryCore/Migrations/20180915164118_ForceAutoIncrementChangeHistory.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace SharedLibraryCore.Migrations
+{
+    public partial class ForceAutoIncrementChangeHistory : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            // hack: we can't alter the column on SQLite, but we need max length limit for the Index in MySQL etc
+            if (migrationBuilder.ActiveProvider != "Microsoft.EntityFrameworkCore.Sqlite")
+            {
+                migrationBuilder.AlterColumn<int>(
+                name: "ChangeHistoryId",
+                table: "EFChangeHistory"
+               ).Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn);
+            }
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}