Ivy-related improvements

• Allow to set password for accessing Ivy repository TW-2393 and
• Do not provide generated ivy.xml if ivy.xml already exists in published artifacts TW-2392

Build management

• Assign next build to specific agent (including disabled ones)
• Possibility to enforce clean checkout for a project on all build agents http://www.jetbrains.net/jira/browse/TW-1836
• Support wildcards in artifact paths and possibility to specify target directory

Build process

• Classpath order for IPR builds was wrong http://www.jetbrains.net/jira/browse/TW-2225

Upgrade svnkit library to 1.1.2