The login-page would not verify as valid XHTML 1.0 Transitional

This fixes:
[Tue Feb 16 13:50:09 2016] [error] [client 10.48.224.4] PHP Warning:  Missing argument 2 for SimpleSAML_Error_AuthSource::__construct(), called in /apps/simplesamlphp-bd-1.14.0/modules/negotiate/lib/Auth/Source/Negotiate.php on line 336 
[Tue Feb 16 13:50:09 2016] [error] [client 10.48.224.4] PHP Notice:  Undefined variable: reason in /apps/simplesamlphp-bd-1.14.0/lib/SimpleSAML/Error/AuthSource.php(31)

Fix the calls to the old getTranslation() and getAttributeTranslation() methods from SimpleSAML_XHTML_Template.

More bugfixes. includeLanguageFile() has been moved from SimpleSAML_XHTML_Template to SimpleSAML\Locale\Translate.

Add a method SimpleSAML_XHTML_Template::getTranslator() to retrieve the SimpleSAML\Locale\Translate instance local to the template, and use it to fix a bug in a template of the consent module.

Bugfix. The consentAdmin module was still calling SimpleSAML_XHTML_Template::getTag(), while that method has been moved to \SimpleSAML\Locale\Translate.

Avoids:
ERROR 1170 (42000): BLOB/TEXT column 'uid' used in key specification without a key length

A template now has a translator-object, SimpleSAML_Locale_Translate.
This handles the existing translation system.

The translator has a language-object, SimpleSAML_Locale_Language. This
handles discovery and switching of locale.

SimpleSAML_XHTML_Template has several methods that are wrapped
translator-methods:

t()
isLanguageRTL()
getLanguageList()
getTranslation()

This way it isn't necessary to change much of the existing system.

This gitignore ignores anything in the modules directory while explicitly including modules that ship with simplesamlphp. This allows users to create and maintain custom modules while tracking upstream.

Update translations to the latest changes registered in translation.rnd.feide.no. The portal is now down, so any new translations must come as pull requests.

(being respectful with occurences that might change the behaviour, i.e. default database prefixes)

This reverts commit 7a801334.

This reverts commit 09c5a23f.

Otherwise you get 404's when SSP is not in the root of the vhost.

SHA-1 is still supported but needs to be configured explicitly if you need it.

This commit addresses Issue 268 and makes the negotiate module a bit more configurable, like the ldap-module it's leaning on..