Composes list of filters that should be applied to a tree, based on
passed data
@param {String} syntax Syntax name ('html', 'css', etc.)
@param {Object} profile Output profile
@param {String} additionalFilters List or pipe-separated
string of additional filters to apply
@returns {Array}
function(syntax, profile, additionalFilters) {
			profile = require('profile').get(profile);
			var filters = list(profile.filters || require('resources').findItem(syntax, 'filters') || basicFilters);
			
			if (profile.extraFilters) {
				filters = filters.concat(list(profile.extraFilters));
			}
				
			if (additionalFilters) {
				filters = filters.concat(list(additionalFilters));
			}
				
			if (!filters || !filters.length) {
				// looks like unknown syntax, apply basic filters
				filters = list(basicFilters);
			}
				
			return filters;
		}