Use shell_exec for Windows compatibility

Fix #40: Modify history parsing to extract filenames with spaces.

Issue #28: More copyright updates.

Fix #28: Updated copyrights from '20081 to '2008-2009'

Fix #26: Ported issue #23, option to define path to SVN binary.

Fix bug introduced by issue #14 for SVN full imports.

Issue #13: Convert remaining files to AGPL3.

Fix #13: Convert project license to AGPL3.

Issue #8: Modified core integrations to start using new method of extracting author/committer information.

Issue #2: Converted SVN integrations to return lists of changesets.

Implement optional username and password for accessing SVN on SourceForge.

Increment to development version 0.13

Fix problems with SF integration.

Increment version to 0.12a

Limit the number of revisions during SVN import.

Increment plugins to version 0.12

Update Source plugins to use new Mantis db_param() form.

lower-cased file actions.

Textual changes. Actions are now ADD/MOD/RM.

Version increment to release 0.11.

Removed legacy parameter.

Implemented partial import feature for both SVN plugins.

Stub for SFSVN partial import.

Source version incremented to 0.10 for new API.

Updated Source plugins to match the new function names.

Moved to EVENT_SOURCE_SHOW_CHANGESET *not* needing to return the repo name.

Changed commit handling to be the same as import handling: the vcs plugin handles saving data, not the Source framework.

Modify SourceForge integration to use apprpriate ViewVC URLs.

Forked WebSVN integration for SourceForge integration.