pkp/pkp-lib#6888 Exclude example code from distribution package

tools/buildpkg.sh

@@ -48,6 +48,7 @@ lib/pkp/lib/vendor/smarty/smarty/demo							\
 lib/pkp/lib/vendor/alex198710/pnotify/.git						\
 lib/pkp/lib/vendor/sebastian								\
 lib/pkp/lib/vendor/oyejorge/less.php/test						\
+lib/pkp/lib/vendor/moxiecode/plupload/examples						\
 lib/pkp/tools/travis									\
 plugins/paymethod/paypal/vendor/omnipay/common/tests/					\
 plugins/paymethod/paypal/vendor/omnipay/paypal/tests/					\
@@ -56,6 +57,7 @@ plugins/paymethod/paypal/vendor/guzzle/guzzle/tests/					\
 plugins/generic/citationStyleLanguage/lib/vendor/symfony/debug/				\
 plugins/generic/citationStyleLanguage/lib/vendor/symfony/console/Tests/			\
 plugins/paymethod/paypal/vendor/symfony/http-foundation/Tests/				\
+plugins/paymethod/paypal/vendor/clue/stream-filter/tests				\
 plugins/generic/citationStyleLanguage/lib/vendor/symfony/filesystem/Tests/		\
 plugins/generic/citationStyleLanguage/lib/vendor/symfony/stopwatch/Tests/		\
 plugins/generic/citationStyleLanguage/lib/vendor/symfony/event-dispatcher/Tests/	\
@@ -74,6 +76,7 @@ plugins/generic/citationStyleLanguage/lib/vendor/satooshi/php-coveralls/tests/
 plugins/generic/citationStyleLanguage/lib/vendor/guzzle/guzzle/tests/			\
 plugins/generic/citationStyleLanguage/lib/vendor/seboettg/collection/tests/		\
 plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/tests/		\
+plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/example/		\
 lib/pkp/lib/vendor/nikic/fast-route/test/						\
 lib/pkp/lib/vendor/ezyang/htmlpurifier/tests/						\
 lib/pkp/lib/vendor/ezyang/htmlpurifier/smoketests/					\