Button managers: some bug fixes and remove redundant include statements.

Source/UI/LookAndFeel/MaterialButtonLookAndFeel.h

@@ -26,7 +26,6 @@
 
 #include "../../../JuceLibraryCode/JuceHeader.h"
 #include "../../Processors/PluginManager/OpenEphysPlugin.h"
-#include "CustomLookAndFeel.h"
 
 
 /**

Source/UI/Utils/LinearButtonGroupManager.cpp

@@ -88,7 +88,9 @@ void LinearButtonGroupManager::resized()
     const int height    = getHeight();
 
     const int numButtons = m_buttons.size();
-    const int buttonWidth = width / numButtons;
+    const int buttonWidth = numButtons != 0
+                                ? width / numButtons
+                                : 0;
 
     // Set bounds for each button
     juce::Rectangle<int> buttonBounds (0, 0, buttonWidth, height);

Source/UI/Utils/LinearButtonGroupManager.h

@@ -24,10 +24,9 @@
 #ifndef LINEARBUTTONGROUPMANAGER_H_INCLUDED
 #define LINEARBUTTONGROUPMANAGER_H_INCLUDED
 
-#include "../../../JuceLibraryCode/JuceHeader.h"
-#include "../../Processors/PluginManager/OpenEphysPlugin.h"
 #include "ButtonGroupManager.h"
 
+
 /**
 
     This class provides possibility to store buttons with radiobutton behaviour in the single

Source/UI/Utils/TiledButtonGroupManager.h

@@ -24,7 +24,6 @@
 #ifndef TILEDBUTTONGROUPMANAGER_H_INCLUDED
 #define TILEDBUTTONGROUPMANAGER_H_INCLUDED
 
-#include "../../../JuceLibraryCode/JuceHeader.h"
 #include "../../Processors/PluginManager/OpenEphysPlugin.h"
 #include "ButtonGroupManager.h"
 
@@ -37,8 +36,6 @@
     using mouse drag selection. (mouse drag - to select, shift+mouse drag to deselect)
 
 */
-
-
 class PLUGIN_API TiledButtonGroupManager : public ButtonGroupManager
 {
 public: