as2-lib 4.5.4

• Fixed a resource leak that caused a lot of "bcMail" temporary files (see #103)
• Fixed a problem with the SelfFillingPartnershipFactory if the instance survives multiple document exchanges to different partners (see #99)

Dependencies required:

• ph-commons/ph-xml/ph-collection/ph-security/ph-datetime/ph-bc 9.3.9
• ph-mail/ph-http/ph-network 9.1.10
• BouncyCastle 1.64