version 0.1 changes

	register tags - add branching template structure to define and properly process if else endif, if elsif else endif tags

	lexer - implement parse condition expression, test functions ==,>=,<=,>,<,eq,ne,=~(perl regexp), binary &&, ||, math operations

	supported tags:

		module pjango::tags:for
			{% for name in list %}
			{% endfor %}

		module pjango::tags::if
			{% if condition %}
			{% elsif condition %}
			{% else %}
			{% endif %}