Fix incorrect SVN log parsing regexes
Fix incorrect SVN log parsing regexes

When importing a repository with non-standard paths, the parsing regexes
were incorrectly looking for filenames without a leading slash, and also
not looking for filenames with a slash after the branch/tag path.

Also, when importing standard repositories where the trunk/branches/tags
folders were not named in complete lower case, the regexes and logic for
finding those paths has been updated to be case-insensitive, and to
prefer using the same case as found in the repository for trunk.

01-Scripts/source-integration,bright-tools/source-integration,mantisbt-plugins/source-integration,mantisbt-plugins/source-integration,dregad/source-integration,bright-tools/source-integration,dregad/source-integration,bright-tools/source-integration-fixes,make-all/source-integration,bright-tools/source-integration-fixes,morgant/source-integration,morgant/source-integration,bright-tools/source-integration,mantisbt-plugins/source-integration,make-all/source-integration,bright-tools/source-integration-fixes,01-Scripts/source-integration,bright-tools/source-integration,morgant/source-integration,make-all/source-integration,dregad/source-integration