Finish release 1.4.0

1) Improve and clarify documentation:
 - update, reformat, and reorder parts of CREDITS.txt
 - make sure that documentation appears in doxygen docs
 - add '\since 1.4.0' to documentation of new methods and functions
 - remove doxygen's '\brief' where not required (we're using
   JAVADOC_AUTOBRIEF = YES)
 - clarify screen scaling, scaling factor, and related stuff
- add more info about backwards compatibility for X11 specific code

2) Update dependencies

1 files changed, 4 insertions, 3 deletions

diff --git a/README.Wayland.txt b/README.Wayland.txt
index 4bd45f837..ea834c4cc 100644
--- a/README.Wayland.txt
+++ b/README.Wayland.txt
@@ -72,7 +72,7 @@ should run with a Wayland-enabled FLTK 1.4 library with this single change.
 
 Note 1: this may require some linker flags to enable exporting symbols
 from *executable* programs which FLTK uses to "read" the global symbol
-'fl_disable_wayland'. For for GNU `ld` or any GNU compiler this would
+'fl_disable_wayland'. For GNU `ld` or any GNU compiler this would
 be "-rdynamic".
 
 
@@ -85,15 +85,16 @@ the following techniques:
 
 Option 1: Set target property 'ENABLE_EXPORTS' on all executable
           targets that require to disable the Wayland backend.
-          This is the preferred solution.
+          This is the preferred solution because it works per target.
 
           CMake example:
 
           set_target_properties(myprog PROPERTIES ENABLE_EXPORTS TRUE)
 
-Option 2: Set CMake policy CMP0065 to 'OLD' (to pre-3.4 behavior)
+Option 2: Set CMake policy CMP0065 to 'OLD' (i.e. pre-3.4 behavior)
           This is a quick solution but discouraged because setting
           CMake policies to 'OLD' is "deprecated by definition".
+          CMake may issue warnings or ignore this in the future.
 
           CMake code: