Updated Android Studio build settings in projects.

examples/Demo/JuceDemo.jucer

@@ -194,7 +194,7 @@
                    androidCpp11="1" targetFolder="Builds/AndroidStudio" androidSDKPath=""
                    androidNDKPath="" androidBluetoothNeeded="1" bigIcon="BvyE0d"
                    androidScreenOrientation="unspecified" androidMicNeeded="1" gradleToolchain="clang"
-                   gradleToolchainVersion="3.6" buildToolsVersion="23.0.1" androidTheme="@android:style/Theme.NoTitleBar">
+                   gradleToolchainVersion="3.6" androidTheme="@android:style/Theme.NoTitleBar">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" androidArchitectures="armeabi x86" isDebug="1" optimisation="1"
                        targetName="JuceDemo"/>

examples/MidiTest/MidiTest.jucer

@@ -102,8 +102,7 @@
     <ANDROIDSTUDIO androidActivityClass="com.yourcompany.miditest.MidiTest" androidInternetNeeded="0"
                    androidBluetoothNeeded="1" androidCpp11="1" androidScreenOrientation="unspecified"
                    targetFolder="Builds/AndroidStudio" androidSDKPath="" androidNDKPath=""
-                   androidMicNeeded="1" gradleToolchain="clang" gradleToolchainVersion="3.6"
-                   buildToolsVersion="23.0.1">
+                   androidMicNeeded="1" gradleToolchain="clang" gradleToolchainVersion="3.6">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" androidArchitectures="armeabi armeabi-v7a x86" isDebug="1"
                        optimisation="1" targetName="MidiTest"/>

examples/NetworkGraphicsDemo/NetworkGraphicsDemo.jucer

@@ -116,7 +116,7 @@
                    androidInternetNeeded="1" androidBluetoothNeeded="1" androidCpp11="1"
                    targetFolder="Builds/AndroidStudio" androidSDKPath="" androidNDKPath=""
                    bigIcon="Ww6bQw" androidScreenOrientation="unspecified" gradleToolchain="clang"
-                   gradleToolchainVersion="3.6" buildToolsVersion="23.0.1">
+                   gradleToolchainVersion="3.6">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" androidArchitectures="armeabi armeabi-v7a x86" isDebug="1"
                        optimisation="6" targetName="JUCE Network Graphics Demo" defines="JUCE_DEBUG=0"/>

examples/OSCReceiver/OSCReceiver.jucer

@@ -85,8 +85,8 @@
     <ANDROIDSTUDIO androidActivityClass="com.yourcompany.oscreceiver.OSCReceiver"
                    androidInternetNeeded="1" androidBluetoothNeeded="1" androidCpp11="1"
                    targetFolder="Builds/AndroidStudio" androidScreenOrientation="unspecified"
-                   gradleToolchain="clang" gradleToolchainVersion="3.6" buildToolsVersion="23.0.1"
-                   androidSDKPath="" androidNDKPath="">
+                   gradleToolchain="clang" gradleToolchainVersion="3.6" androidSDKPath=""
+                   androidNDKPath="">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" androidArchitectures="armeabi armeabi-v7a x86" isDebug="1"
                        optimisation="1" targetName="OSCReceiver"/>

examples/OSCSender/OSCSender.jucer

@@ -77,7 +77,7 @@
     <ANDROIDSTUDIO androidActivityClass="com.yourcompany.oscsender.OSCSender" androidInternetNeeded="1"
                    androidBluetoothNeeded="1" androidCpp11="1" targetFolder="Builds/AndroidStudio"
                    androidSDKPath="" androidNDKPath="" androidScreenOrientation="unspecified"
-                   gradleToolchain="clang" gradleToolchainVersion="3.6" buildToolsVersion="23.0.1">
+                   gradleToolchain="clang" gradleToolchainVersion="3.6">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" androidArchitectures="armeabi armeabi-v7a x86" isDebug="1"
                        optimisation="1" targetName="OSCSender"/>