Modified sending email function & Fixed viewing adhoc charges

1) Changed the term of "Sub resource" to "Unlimited resource"
2) Add Contact view link to secondary contact of booking view
3) Added "Both" option item to Send email form.
4) Added Header & Footer text areas in Sending email form
5) Fixed the error of getting adhoc charges detail in booking view.
6) Modified Cancellation page.
7) Fixed DayView minor issues