Remove $Id$ tags, update URL's, and more

- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files

The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.

1 files changed, 3 insertions, 3 deletions

diff --git a/documentation/src/fltk.man b/documentation/src/fltk.man
index 8950712cd..89d680a75 100644
--- a/documentation/src/fltk.man
+++ b/documentation/src/fltk.man
@@ -21,7 +21,7 @@ The authors do request that such modifications be
 contributed to the FLTK project - send all contributions
 through the "Software Trouble Report" on the following page:
 .IP
-    http://www.fltk.org/str.php
+    https://www.fltk.org/bugs.php
 .IP
 2. Widgets that are subclassed from FLTK widgets do not
 constitute a derivative work.
@@ -46,12 +46,12 @@ following example statement can be included in user
 documentation to satisfy this requirement:
 .IP
 [program/widget] is based in part on the work of the FLTK
-project (http://www.fltk.org).
+project (https://www.fltk.org).
 .SH SEE ALSO
 fltk\-config(1), fluid(1)
 .br
 FLTK Programming Manual
 .br
-FLTK Web Site, http://www.fltk.org/
+FLTK Web Site, https://www.fltk.org/
 .SH AUTHORS
 Bill Spitzak and others.