Change action bar home icon to W icon
Change action bar home icon to W icon

No border around the action bar home icon anymore. :)
Only seems to affect 4.x devices, but better than nothing.

Change-Id: Iee01fb0f9b5c8386f8354c94b2af884348b628e0

anirudh24seven/apps-android-wikipedia,carloshwa/apps-android-wikipedia,wikimedia/apps-android-wikipedia,reproio/apps-android-wikipedia,wikimedia/apps-android-wikipedia,wikimedia/apps-android-wikipedia,BrunoMRodrigues/apps-android-tbrc-work,anirudh24seven/apps-android-wikipedia,parvez3019/apps-android-wikipedia,dbrant/apps-android-wikipedia,BrunoMRodrigues/apps-android-tbrc-work,carloshwa/apps-android-wikipedia,Wikinaut/wikipedia-app,SAGROUP2/apps-android-wikipedia,creaITve/apps-android-tbrc-works,Duct-and-rice/KrswtkhrWiki4Android,creaITve/apps-android-tbrc-works,carloshwa/apps-android-wikipedia,parvez3019/apps-android-wikipedia,Wikinaut/wikipedia-app,SAGROUP2/apps-android-wikipedia,dbrant/apps-android-wikipedia,carloshwa/apps-android-wikipedia,parvez3019/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,creaITve/apps-android-tbrc-works,BrunoMRodrigues/apps-android-tbrc-work,reproio/apps-android-wikipedia,parvez3019/apps-android-wikipedia,Wikinaut/wikipedia-app,SAGROUP2/apps-android-wikipedia,reproio/apps-android-wikipedia,SAGROUP2/apps-android-wikipedia,creaITve/apps-android-tbrc-works,reproio/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,anirudh24seven/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,Wikinaut/wikipedia-app,anirudh24seven/apps-android-wikipedia,BrunoMRodrigues/apps-android-tbrc-work,dbrant/apps-android-wikipedia,parvez3019/apps-android-wikipedia,dbrant/apps-android-wikipedia,Wikinaut/wikipedia-app,carloshwa/apps-android-wikipedia,reproio/apps-android-wikipedia,wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia,anirudh24seven/apps-android-wikipedia,Duct-and-rice/KrswtkhrWiki4Android,SAGROUP2/apps-android-wikipedia