Bail if the payment method object can not be found during checkout.
Added RTL styles + Hebrew L10n files

RTL styles have been appended to the end of admin.css + camptix.css
since they have to override the default rules in RTL installations.
Merge pull request #12 from maor/master

RTL Styles + Hebrew L10n files props @maor
Adding new currency: ILS
Allow PayPal credentials to be predefined with a filter.
Use full opening PHP tag

This doesn't work on php installations with
short_open_tag disabled.
Merge pull request #14 from nb/bug-short-tag

Use full opening PHP tag props @nb
Explain cryptic placeholders to translators
Set the quantity to 1 for single ticket

If we have only once ticket type and the user
visits the tickets form, the 0 by default is
off-putting.

Instead, if there's only one ticket type, we
default the quantity to 1. This way the user can
just click Register and we will do the expected
thing. No choice needed.
Preserve the original reservation name

Currently, if we use non-ASCII name for a
reservation, in the listing we get url urlencoded
unreadable gibberish.

That's why we keep the original name in a different
field in the reservation and build the id from
it.
Merge pull request #15 from nb/enhancement-translators-from-to

Explain cryptic placeholders to translators
Merge pull request #17 from nb/bug-unreadble-reservation-names

Preserve the original reservation name
Merge pull request #16 from nb/enhancement-quantity-1-for-single-ticket

Set the quantity to 1 for single ticket
Minor cleanup.
Use numeric values in class names instead of sanitized questions when rendering registration forms. Allows to target non-English questions fields with CSS. Props @maor see #18
The $i in fe9fa60ab9c79263c8a9e732066fdd9ae77680c5 broke questions numbering. Use a different variable name.
Don't go past the ticketing form if no payment methods have been enabled.
Remove content before and after the shortcode in some steps. A better check for the shortcode.
Started on some questions as cpts, but work is not done.
Proper use of $wpdb->prepare().