Error inflating class (App crashes)
with V1.2.1

when i only add this to the layout xml : 

``` javascript
<com.mikepenz.iconics.view.IconicsImageView
            android:layout_width="72dp"
            android:layout_height="72dp"
            app:iiv_icon="gmd-favorite-outline"
            app:iiv_color="@android:color/holo_red_dark"
            />
```

My app crashes : 

``` javascript
    android.view.InflateException: Binary XML file line #42: Error inflating class com.mikepenz.iconics.view.IconicsImageView
            at android.view.LayoutInflater.createView(LayoutInflater.java:626)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
            at com.mine.do.SampleFragment.onCreateView(SampleFragment.java:66)
            at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:953)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1136)
            at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
            at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1499)
            at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:488)
            at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
            at android.support.v4.view.ViewPager.populate(ViewPager.java:1073)
            at android.support.v4.view.ViewPager.populate(ViewPager.java:919)
            at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)
            at android.view.View.measure(View.java:17479)
            at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)
            at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
            at android.view.View.measure(View.java:17479)
            at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:868)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5364)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5364)
            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
            at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
            at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5364)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5364)
            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
            at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
            at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5364)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2532)
            at android.view.View.measure(View.java:17479)
            at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2262)
            at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1391)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1590)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1249)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6585)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
            at android.view.Choreographer.doCallbacks(Choreographer.java:603)
            at android.view.Choreographer.doFrame(Choreographer.java:573)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5586)
            at java.lang.reflect.Method.invokeNative(

```
