Updates to project URLs in docs and embedded in source code

CONTRIBUTING.md

@@ -1,55 +1,34 @@
-
 Contributing Guide
 ==================
 
-Hello, and thank you so much for taking your time to contribute in any way to
-htop! There are many ways to contribute, and I'll try to list them below. The
-support from the free software community has been amazing over the years and
-it is the number one thing that keeps me going, maintaining and improving
-something that started as a tiny pet project back in 2004 and that nowadays is
-a piece of software used all over the world, in both reality [and
-fiction!](http://hisham.hm/htop/index.php?page=sightings). Cheers!
-
--- Hisham Muhammad
+Thank you so much for taking the time to contribute in to htop!
 
 Bug Reports
 -----------
 
 Bug reports should be posted in the [Github issue
-tracker](http://github.com/hishamhm/htop/issues). (I reply to them all, but I
-usually do it in batches! :) ) Bug reports are extremely important since it's
-impossible for me to test htop in every possible system, distribution and
-scenario. Your feedback is what keeps the tool stable and always improving!
-Thank you!
+tracker](https://github.com/htop-dev/htop/issues).
+Bug reports are extremely important since it's impossible for us to test
+htop in every possible system, distribution and scenario. Your feedback
+is what keeps the tool stable and always improving!  Thank you!
 
 Pull Requests
 -------------
 
 Code contributions are most welcome! Just [fork the
-repo](http://github.com/hishamhm/htop) and send a [pull
-request](https://github.com/hishamhm/htop/pulls). Help is especially
+repo](https://github.com/htop-dev/htop) and send a [pull
+request](https://github.com/htop-dev/htop/pulls).  Help is especially
 appreciated for support of platforms other than Linux.  If proposing new
 features, please be mindful that htop is a system tool that needs to keep a
-small footprint and perform well on systems under stress -- so unfortunately I
-can't accept every new feature proposed, as I need to keep the tool slim and
-maintainable. Great ideas backed by a PR are always carefully considered for
-inclusion, though! Also, PRs containing bug fixes and portability tweaks are a
-no-brainer, please send those in!
+small footprint and perform well on systems under stress -- so unfortunately
+we can't accept every new feature proposed, as we need to keep the tool slim
+and maintainable.  Great ideas backed by a PR are always carefully considered
+for inclusion though!  Also, PRs containing bug fixes and portability tweaks
+are always included, please send those in!
 
 Feature Requests
 ----------------
 
-Back when htop was hosted in SourceForge, there used to be separate Bug
-Tracker and Feature Request pages. These go all lumped together under "Issues"
-in Github, which is a bit confusing. For this reason, I close Feature Requests
-and file them with the [`feature
-request`](https://github.com/hishamhm/htop/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3A%22feature+request%22+)
-label, where they remain accessible, but not mixed with actual bug reports.
-This doesn't mean I'm dismissing or ignoring feature requests right away! It's
-just an organizational issue (with Github, really!).
-
-Donations
----------
-
-If you like htop, feel free to [buy the author a
-beer](http://hisham.hm/htop/index.php?page=donate). :-)
+Please label Github issues that are feature requests with the [`feature
+request`](https://github.com/htop-dev/htop/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3A%22feature+request%22+)
+label.

darwin/DarwinCRT.c

@@ -15,7 +15,7 @@ void CRT_handleSIGSEGV(int sgn) {
    (void) sgn;
    CRT_done();
    #ifdef __APPLE__
-   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at http://hisham.hm/htop\n");
+   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
    #ifdef HAVE_EXECINFO_H
    size_t size = backtrace(backtraceArray, sizeof(backtraceArray) / sizeof(void *));
    fprintf(stderr, "\n Please include in your report the following backtrace: \n");

dragonflybsd/DragonFlyBSDCRT.c

@@ -17,7 +17,7 @@ in the source distribution for its full text.
 void CRT_handleSIGSEGV(int sgn) {
    (void) sgn;
    CRT_done();
-   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at http://hisham.hm/htop\n");
+   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
    #ifdef HAVE_EXECINFO_H
    size_t size = backtrace(backtraceArray, sizeof(backtraceArray) / sizeof(void *));
    fprintf(stderr, "\n Please include in your report the following backtrace: \n");

linux/LinuxCRT.c

@@ -17,7 +17,7 @@ void CRT_handleSIGSEGV(int sgn) {
    (void) sgn;
    CRT_done();
    #ifdef __linux
-   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at http://hisham.hm/htop\n");
+   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
    #ifdef HAVE_EXECINFO_H
    size_t size = backtrace(backtraceArray, sizeof(backtraceArray) / sizeof(void *));
    fprintf(stderr, "\n Please include in your report the following backtrace: \n");

solaris/SolarisCRT.c

@@ -17,7 +17,7 @@ in the source distribution for its full text.
 void CRT_handleSIGSEGV(int sgn) {
    (void) sgn;
    CRT_done();
-   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at http://hisham.hm/htop\n");
+   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
    #ifdef HAVE_EXECINFO_H
    size_t size = backtrace(backtraceArray, sizeof(backtraceArray) / sizeof(void *));
    fprintf(stderr, "\n Please include in your report the following backtrace: \n");