ApplicationTest and DFSFileExplorerTest do not take into account file system ordering

[ltouroumov]

Tests related to the output of the IFileExplorer::explore() test for specific ordering returned by File.list() not guaranteed by the java API.

ApplicationTest require File objects to have specific getPath() value regardless of correctness.

Sample Output

./workspace/quotes
./workspace/quotes/A
./workspace/quotes/A/B
./workspace/quotes/A/C
./workspace/quotes/A/C/D
./workspace/quotes/A/C/D/file1.txt
./workspace/quotes/A/C/D/file2.txt
./workspace/quotes/A/C/file1.txt
./workspace/quotes/A/file1.txt
./workspace/quotes/A/file2.txt

Expected Output

./workspace/quotes
./workspace/quotes/A
./workspace/quotes/A/file1.txt
./workspace/quotes/A/file2.txt
./workspace/quotes/A/B
./workspace/quotes/A/C
./workspace/quotes/A/C/file1.txt
./workspace/quotes/A/C/D
./workspace/quotes/A/C/D/file1.txt
./workspace/quotes/A/C/D/file2.txt

[wasadigi]

Thank you very much for the feedback. Will be helpful for next year.