Add changelog for 0.73.0 (redhat-developer#1744)

Signed-off-by: Roland Grunberg <rgrunber@redhat.com>

Add changelog for 0.72.0 (redhat-developer#1726)

Signed-off-by: Roland Grunberg <rgrunber@redhat.com>

fallback to search /usr/lib/jvm for jdks on Linux (redhat-developer#1706

)

* fallback to search /usr/lib/jvm for jdks on Linux

Signed-off-by: Yan Zhang <yanzh@microsoft.com>

* update changelog

Signed-off-by: Yan Zhang <yanzh@microsoft.com>

Add changelog for 0.70.0

Signed-off-by: Roland Grunberg <rgrunber@redhat.com>

Add changelog for 0.69.0

Signed-off-by: Roland Grunberg <rgrunber@redhat.com>

Add changelog for 0.68.0

Signed-off-by: Fred Bricon <fbricon@gmail.com>

Add redhat-developer#1618 to changelog

Signed-off-by: Fred Bricon <fbricon@gmail.com>

Fixed typo in readme

Signed-off-by: Fred Bricon <fbricon@gmail.com>

Add cache for markdown provider

Signed-off-by: Sheng Chen <sheche@microsoft.com>

Fix Jenkinsfile

Signed-off-by: Fred Bricon <fbricon@gmail.com>