Fixed small typo

The element LclInstrm was used as LclInstr, which is incorrect according to pain.001.001.03.xsd
Added 'COR1' as allowed code for localinstrument

COR1 is allowed in some cases, for instance for the EPC:

 - COR1 is used to cater for optional shorter time cycle (D-1) for a Core direct
debit
Merge pull request #6 from NanneHuiges/master

Fixed a small typo for the element "LocalInstrument"
add composer.json file
more normalizations
ready package for packagist
Update README.md
Correct license notation in Composer

See http://getcomposer.org/doc/04-schema.md#license
Autoload in composer
Merge pull request #9 from SlikNL/license

Correct license notation in Composer
Merge pull request #8 from SlikNL/autoload

Autoload in composer
Fix case with no payments, closes #7
Merge pull request #10 from SlikNL/no-payments

Fix case with no payments, closes #7
use htmlentities for textfield payment id
SepaCreditTransfer: make BIC optional
Merge pull request #12 from SlikNL/fixentities

use htmlentities for textfield payment id
Update composer.json
Merge pull request #13 from SlikNL/optionalbic

SepaCreditTransfer: make BIC optional
add SepaTransferFile.php to classmap
Merge pull request #14 from SlikNL/fixautoload

add SepaTransferFile.php to classmap