8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
Summary: Refactor debug.hpp and reverse include dependency.
Reviewed-by: coleenp, stefank, dcubed

8170857: Typo in -Xlog:help output
Reviewed-by: dholmes

8170855: Example for -Xlog:help do not contain one with multiple tags
Reviewed-by: dholmes

8146009: "pure virtual method called" with using new GC logging mechanism
Reviewed-by: dsamersoff, dholmes, mchernov
Contributed-by: marcus.larsson@oracle.com, michail.chernov@oracle.com

8165226: Bad -Xloggc: arguments crashes the VM
Reviewed-by: dsamersoff, sjohanss

8157948: UL allows same log file with multiple file=
Reviewed-by: dholmes, rehn

8150823: UL disables log outputs incorrectly
Reviewed-by: rehn, sla

8150894: Unused -Xlog tag sequences are silently ignored.
Reviewed-by: rehn, sla

8153074: UL: Show output option in VM.log jcmd
Reviewed-by: dholmes, mlarsson

8154106: UL Xlog:help regd'g 'rt' tag
Reviewed-by: mlarsson, mockner, gtriantafill

8158150: LogConfiguration::describe output can get truncated
Reviewed-by: dholmes, kbarrett

8146948: Enable listing of LogTagSets and add support for LogTagSet descriptions
Reviewed-by: rehn, iklam, kbarrett

8153073: UL: Set filesize option with k/m/g
Reviewed-by: mlarsson, dholmes

8155089: UL: Remove trailing comma from log decoration list
Reviewed-by: dsamersoff, mlarsson

8151526: Print -Xlog configuration in the hs_err_pid file
Summary: logging configuration is now printed in hs_err and in vm info.
Reviewed-by: coleenp, mlarsson, dholmes

8146879: Add option for handling existing log files in UL
Reviewed-by: dsamersoff, gziemski, rehn

8152632: Rename LogHandle(...) to Log(...)
Reviewed-by: brutisso, mlarsson, rprotacio

8151264: Add a notification mechanism for UL configuration changes.
Reviewed-by: dholmes, mlarsson

8148219: Add decorator hostname to UL
Reviewed-by: dholmes, mlarsson
Contributed-by: robbin.ehn@oracle.com

8145294: TestLogRotation.java triggers a race in the UL framework
Reviewed-by: sla, mgronlun

8144220: UL does not support full path names for log files on windows
Reviewed-by: sla, mgronlun

8145083: Use semaphore instead of mutex for synchronization of Unified Logging configuration
Reviewed-by: dholmes, kbarrett, mgronlun

8140556: Add force rotation option to VM.log jcmd
Summary: Rotate JVM log files via jcmd
Reviewed-by: sla, mlarsson

8142952: Unified Logging framework does not allow multiple -Xlog: arguments.
Reviewed-by: brutisso, sla

8143229: Replace the develop level with develop macros in Unified Logging
Reviewed-by: brutisso, coleenp, dholmes, rprotacio

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8046148: JEP 158: Unified JVM Logging
Reviewed-by: coleenp, sla