Ensure parsed_filename's jit_dumpfile_exists variable is initialized before use

Signed-off-by: Changbin Park <changbin.park@lge.com>
Revert "Some build metafiles are added to .gitignore"

This reverts commit 145e61b09442ca0e6d3b4baad7f2db9206a65036.
To sync with oprofile official git
Revert "To build for Android with NDK 'kernel_may_have_perf_events_support' should be 'yes'"

This reverts commit 0beeb8e6d2eba4728ae9faeec5fc25508a143fa2.
Flesh out user manual doc on oparchive/opimport commands

There have been numerous questions over the years from users
who have a need to analyze their profile data offline, on
systems other than where the data was collected.  Often,
these users are completely unaware of the oparchive and
opimport commands which are intended for use in such
situations. Part of the problem has been a lack of detailed
documentation about these commands.  This patch adds
some detail to the user manual documentation for these commands
and also renames the oparchive section from
"6. Archiving measurements (oparchive)" to "6. Analyzing profile
data on another system (oparchive)".

This patch was motivated by questions raised in OProfile bug
http://sourceforge.net/tracker/?func=detail&atid=116191&aid=3610522&group_id=16191.

Signed-off-by Maynard Johnson <maynardj@us.ibm.com>
Merge branch 'oprofile'

Conflicts:
	libpp/parse_filename.h