Bugfix release 1.2.2

• Fix a bug that was breaking the build against EPICS 7.0.4
• Remove CloudBees Jenkins scripts
• Update Travis configuration, add jobs for Base 7.0.4 and bionic
• Minor improvements (hinted by Codacy).

Bugfix and maintenance release

• Fix a bug that caused segfaults when calling mcoreThreadShow without argument (#1).
• Make the example IOC application an embedded TOP structure.
• Push Makefiles to current 3.15 standards.