Improve exception handling

src/main/java/wtf/beatrice/hidekobot/HidekoBot.java

@@ -77,7 +77,12 @@ public class HidekoBot
             );
 
             jda = jdaBuilder.build().awaitReady();
-        } catch (Exception e)
+        } catch (InterruptedException e) {
+            LOGGER.error(e.getMessage()); // print the error message, omit the stack trace.
+            Thread.currentThread().interrupt(); // send interrupt to the thread.
+            shutdown(); // if we failed connecting and authenticating, then quit.
+        }
+        catch (Exception e)
         {
             LOGGER.error(e.getMessage()); // print the error message, omit the stack trace.
             shutdown(); // if we failed connecting and authenticating, then quit.

src/main/java/wtf/beatrice/hidekobot/datasources/ConfigurationSource.java

@@ -47,7 +47,14 @@ public class ConfigurationSource
         if(!fsConfigFile.exists())
         {
             // try to create config file
-            try { fsConfigFile.createNewFile(); }
+            try {
+                if(!fsConfigFile.createNewFile())
+                {
+                    LOGGER.error("We tried creating a file that already exists!");
+                    HidekoBot.shutdown();
+                    return;
+                }
+            }
             catch (IOException e) {
                 LOGGER.error("Error creating configuration file!", e);
                 HidekoBot.shutdown();