Remove commas in names in recipient list string

Fixes #1225
Remove separators from names in recipient list

Fixes #1225 and #1174
scroll to the new message in conversation
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Add APN for Aio wireless (USA).

Source: http://www.aiowireless.com/support/Apps-and-Services/Bring-Your-Own-Device-BYOD/customer/Bring-Your-Own-Android.html
Merge pull request #1249 from mcginty/convo-scroll

scroll to the new message in conversation
Merge pull request #1228 from backspace/support-commas-in-contact-names

Remove commas in names in recipient list string
refactor and improve contact selection

* unify single and multi contact selection activities
* follow android listview design recommendations more closely
* add contact photos to selection
* change indicator for push to be more obvious
* cache circle-cropped bitmaps
* dedupe numbers when contact has multiple of same phone number

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