Welcome text option + Destroy added for clients

You can now click on a "Welcome Text" option and MEDAPulse will send a text like this: 

"Welcome to MEDAPulse, Anne. Please save this number in your phone as Brittany. I'll be texting you with reminders for your goals. Text back if you need help!"

Also, you can now delete the client if you are the coach. 

![](http://media.giphy.com/media/HwePORLAGGJOw/giphy.gif)