Series sales form:: increase max length of a URL to 285.

While 255 characters should be enough for a URL, if it contains
non-ASCII symbols, it gets encoded and the result is greater than 255
characters. To handle this case, I increased the max length of a URL.

See: https://en.wikipedia.org/wiki/Percent-encoding

Author: php-coder

src/main/resources/liquibase/version/0.4.xml

@@ -35,5 +35,6 @@
 	<include file="0.4/2017-11-08--import_series.xml" relativeToChangelogFile="true" />
 	<include file="0.4/2017-11-09--series_import_requests_url_length.xml" relativeToChangelogFile="true" />
 	<include file="0.4/2017-11-09--series_import_parsed_data_release_year_field.xml" relativeToChangelogFile="true" />
+	<include file="0.4/2017-11-09--transaction_participants_url_length.xml" relativeToChangelogFile="true" />
 
 </databaseChangeLog>

src/main/resources/liquibase/version/0.4/2017-11-09--transaction_participants_url_length.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+		xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+		http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.0.xsd">
+	
+	<changeSet id="modify-transaction_participants-url-field" author="php-coder" context="scheme">
+		<modifyDataType tableName="transaction_participants" columnName="url" newDataType="VARCHAR(285)" />
+	</changeSet>
+	
+</databaseChangeLog>