Update description of account_type

{@link android.provider.CalendarContract.Calendars#ACCOUNT_TYPE Calendars.ACCOUNT_TYPE}

in the selection. That is because a given account is

only considered unique given both its <code>ACCOUNT_NAME</code> and its

<code>ACCOUNT_TYPE</code>. The <code>ACCOUNT_TYPE</code> refers to the way that

the account is being  synced. It is often but not always the domain. For

example, an account could be  synced through a corporate pop3 sync adapter, in which

case the <code>ACCOUNT_TYPE</code> would not be a domain. There is also a

special type of account called {@link

<code>ACCOUNT_TYPE</code>. The <code>ACCOUNT_TYPE</code> is the string corresponding to the

account authenticator that was used when the account was registered with the

{@link android.accounts.AccountManager}. There is also a special type of account called {@link

android.provider.CalendarContract#ACCOUNT_TYPE_LOCAL} for calendars not

associated with a device account. {@link

android.provider.CalendarContract#ACCOUNT_TYPE_LOCAL} accounts do not get