PMOX-89 Basic mobile theme support

Added basic support for OXID mobile theme.

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-89 Better ELV/CC Markup, Better Error Styling (Mobile)

mobile theme support:
 - removed unnecessary markup for mobile tpl
 - removed labels from elv, added placeholder attribute instead
 - fixed error styling for mobile theme

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-89 Better CC Markup and Styling

mobile theme support:
 - removed unnecessary markup
 - better mobile styling

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-89 added check to installer for mobile block

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-90 added payment long description to the tpls

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-90 added payment long description to mobile tpls

Signed-off-by: Enes Fazli <fazli.enes@gmail.com>
PMOX-91 ui change: new format for valid until months

ui change: credit card form - valid until months are shown in a new format instead of just having the name of the month it also shows the number, e.g. "1 - January"
PMOX-93 removed deprecated instances of oxConfig::getInstance()
PMOX-94 Remove all deprecated static calls

oxSession, oxLang, oxUtils etc
PMOX-94 change log update

refactoring: removed all deprecated calls, e.g. oxConfig::getInstance() etc
PMOX-94 $oViewConf->getActiveClassName() deprecated changed to $oViewConf->getTopActiveClassName()
PMOX-95 autocomplete="off" for input fields

added autocomplete="off" to credit card number, card verification value, iban and bic fields
PMOX-96 Description max length 128 chars

max length of transaction description set to 128 characters
PMOX-95 changed CVV input field type from "text" to "password"
PMOX-92 added css tooltips

ui change: hover tooltip for CVV input field, clickable tooltip for mobile template
PMOX-88 Fixed: OrderNumber not set in description
Readme.md myorder.php path for shops with >=4.8

Newer versions of oxid do have invoicepdf in another directory. modules/oe vs just modules
PMOX-98 better styling for month select
removed clickable tooltip for mobile

will be reimplemented in next release