Add close button to memory map dialog

Taken from GSM commit: 00eb83fdbc5a6b6d5369b59b00a13293b1981b4f
From: Chris Kühl <chrisk@openismus.com>
Fix falsly reporting 'Unknown CPU model'

Taken from GSM commit: 3ef0ed45f91f09a05905e20863e854ee84573b73
From: Luciano Chavez <lnx1138@linux.vnet.ibm.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=619733
Fix to show cpu model on ARM

Taken from GSM commit: a84ed33fb4c313d7cf67fac791aa063a997cb3af
From: Debbie Beliveau <debbie.beliveau@canonical.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=606769
Add translator comment to clarify 'open files' is no action

Taken from GSM commit: 2436bc9ea02516ad5fa69f476fd3b48b32108404
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=423088
Pass the parent window to the about dialog

Taken from GSM commit: 9f9f0c929659d63100a3efba7826c7f777ed21ed
From: Cosimo Cecchi <cosimoc@gnome.org>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=645575
Make maximum nice value 19 instead of 20 on Linux
Make 'Solaris mode' option be more descriptive

Taken from GSM commit: 3307a7673e7b42843089d82778a9b76b495b3b9d
From: Chris Kühl <chrisk@openismus.com>
Gnome Bug: https://bugzilla.gnome.org/show_bug.cgi?id=467168
Get rid of unused variable 'sizegroup'
Added SI prefix tera to network counter

Taken from GSM commit: 3ea7303181e80e188e72a4fcd98b9970fe554b3b
From: Chris Kühl <chrisk@openismus.com>
Fix network totals overflow on 32-bit machines

Taken from GSM commit: c7275791a89623ad1edc820a6ef16faae37a18aa
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=639212
Fix for issues on 32-bit machines

Taken from GSM commit: 843cc40119d36873f9670975c7815fbd38481093
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: Fix for issues on 32-bit machines
Correct bad status tip wording when hovering over View->My Processes

Taken from GSM commit: db2451155c6b2199b759104c9caa4812209cdab9
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=530336
Fix to remember custom column ordering.

Taken from GSM commit: dd0e346046b9e069b6e758b2b951b03ddfdf50b3
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=365101
Added ability to navigate tabs using Alt-N

Taken from GSM commit: a2bccca48724fc5873c72978d11f106af2a6aaf4
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=496750
If NI_IDN is not defined, set it to 0.

Taken from GSM commit: 74ced4acf1f514e5a75b7e68f0e012d8bc869be1
From: Antoine Jacoutot <ajacoutot@openbsd.org>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=652602
Make change priority button respect button-images setting

Taken from GSM commit: bfef9799749fa0b36bb91c52479f7e7119b5d738
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=592747
Add OpenBSD support

Add OpenBSDSysInfo() for getting OpenBSD system information

Taken from GSM commit: 8cc3d4d04963bc5f4e70fa6d81a8ad009eac9021
From: Antoine Jacoutot <ajacoutot@openbsd.org>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=652584
Show CPU speed for ppc64 processors.

Taken from GSM commit: 401d84dc4ed6cc0cea3d23b19debfc6e9e204f90
From: Chris Kühl <chrisk@openismus.com>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=619732
Make indentation uniform across source files

No more tabs, 4 spaces instead. And remove trailing whitespace.
Give 'g' variable meaningful name, 'graph'

Taken from GSM commit: ffdc8936d6b78ddd630d9448341ef515eee8c7f7
From: Chris Kühl <chrisk@openismus.com>