initial xerl import to utils

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+Always do:
+
+- Pragmatic modules ALWAYS to use in ALL packages: 
+
+  use strict;
+  use warnings;
+
+- Only for packages for including package UNIVERSAL definitions
+
+  use Xerl::Page::Base;
+
+- Object oriented coding style
+
+- Always use method prototypes if possible
+
+  sub foo($;$) { .... }
+
+- Explicit object typing if possible
+
+  my Class::Name::Here $foo = Class::Name::Here->new();
+
+- If no real ret val, set undef; explicitly
+
+  sub foo() {
+  	# Do some stuff
+	...
+	# Set explicit undef ret value
+	return undef;
+  }
+
+- Private subs use _ as its prefix and are called only from the current package.
+
+  package Xerl::Foo::Bla;
+  .
+  .
+
+  sub _iamprivate($) {
+	my Xerl::Foo:Bla $self = $_[0];
+	.
+	.
+  }
+
+  sub iampublic($) {
+	my Xerl::Foo:Bla $self = $_[0];
+	$self->_iamprivate();
+	return undef;
+  }
+
+- Static subs (not OOP) are in CAPITAL letters. 
+
+  sub IAMSTATIC($) {
+	print shift;
+	return 'Hello World';
+  }
+
+  sub iamdynamic($) {
+	my Xerl::Foo:Bla $self = $_[0];
+	return Xerl::Foo::Bla::IAMSTATIC( $self->get_somevalue() );
+  }
+
+- Static private subs start with _ and are written in CAPITAL letters
+
+  sub _IAMSTATICPRIVATE() { 
+	.
+	.
+  }
+
+- Use Pidy to automaically restyle the code! (make pidy)
+
+- Mark things which are still to do with TODO: at any place in the source
+  tree. (Can be searched for using 'make todo').