6900757: minor bug fixes to LogCompilation tool
Summary: improve internal error reporting (point to XML element causing trouble); fix comparator for sorting by name and start; make tool more robust wrt. incorrect options and files not found; make inlining decision output more clear; adopt uncommon traps history printing; properly mention compiler in generated logs; add options for printing time stamps and omitting compilation IDs; add option for comparing compilation logs; overall code cleanup and API documentation
Reviewed-by: kvn, vlivanov

8043638: Multiple compilation attempts break LogCompulation, lead to confusing PrintInlining output
Summary: dumps inlining only for last compilation attempt. Fix LogCompilation tool so it handles multiple compilation attempts.
Reviewed-by: vlivanov, kvn

8005079: fix LogCompilation for incremental inlining
Summary: report late inlining as part of the rest of the inlining output
Reviewed-by: twisti, kvn

8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

8022456: LogCompilation tool does not work with C1 output again
Reviewed-by: kvn

7092905: C2: Keep track of the number of dead nodes
Summary: keep an (almost) accurate running count of the reachable (live) flow graph nodes.
Reviewed-by: kvn, twisti, jrose, vlivanov

7081842: assert(Compile::current()->unique() < (uint)MaxNodeLimit) failed: Node limit exceeded
Summary: Add missing node limit check in IGVN optimizer
Reviewed-by: iveresov, never

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

6807963: need tool to make sense of LogCompilaton output
Reviewed-by: kvn