Dialer/phone not opening
I'm running cm 10.1 rc2. I went ahead and changed the MMS.apk because I prefer the black theme or the stock white/grey. I overwrited the current mms.apk located in system/apps/ and changed the permissions to match the other apks in this folder. After I rebooted and noticed the icon for the mms on my homescreen dock was gone. I added it back through the app drawer. I then went ahead and did the same with the contacts.apk after changing the permissions I noticed both the contacts/phone icons were gone from the dock. I rebooted as usual and replaced the missing contact icon.
Now here is the issue the phone icon isn't located in my app drawer. I went to make sure it was still installed and in the system/apps/ and it was. I didn't touch this file at all. I tried to access the dialer through my lockscreen shortcut when I highlighted it nothing happened it just unlocked my phone. I'm unsure how to get my dialer to work and the icon back.