Worked on standalone samples as well as minor updates to moodle
Merge pull request #1384 from benjamij/php-api-rest-calls

Worked on standalone samples as well as minor updates to moodle
Refactored the playground extensions
Merge pull request #1385 from priand/playground2

Refactored the playground extensions
Add support for Activitity categories
Support reading activity categories and activity descendants
Merge pull request #1386 from markewallace/ActivityCategorySupport

Add support for Activitity categories
BSS Unit Test
Unit test to demonstrate using SubscriberManagement.getSubscribersById
Merge pull request #1387 from markewallace/GetSubscribersByIdTest

BSS Unit Test
Rename tests
Merge pull request #1388 from markewallace/GetSubscribersByIdTest

Rename tests
Merge pull request #1380 from CarlosManias/java-api-common-urlbuilder

Java api common urlbuilder
SECURITY UPDATE: Removed usage of mysql_real_escape_string and replaced it with Moodle's sql_like_escape
Use of mysql_real_escape_string may result in errors, depending on the character encoding specified in php.ini. Since PHP 5+, mysql_real_escape_string has been deprecated
Merge pull request #1389 from benjamij/moodle-security-update

SECURITY UPDATE: Removed usage of mysql_real_escape_string and replaced ...
Fixed typo
Merge pull request #1390 from benjamij/moodle-sample-typo-fix

Fixed typo
Playground refactoring
Merge pull request #1391 from priand/playground2

Playground refactoring
Playground Doc Editor enhancements
Merge pull request #1392 from priand/master

Playground Doc Editor enhancements
Enhanced the API documentation capability of the Playground