Bugfix SUP-7992
Updated some dependencies in order to fix security vulnerabilities:
- pdfbox to 2.0.15
- c3p0 to 0.9.5.4
- httpclient to 4.5.9
- xalan to 2.7.2
- velocity-tools to 1.4
- node to 2.3.8
Updated some dependencies in order to fix security vulnerabilities: