doc: tweak a few doxygen options, mainly to display the version

The rest is rather insignificant

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

Author: whot

doc/libevdev.doxygen.in

@@ -32,13 +32,13 @@ PROJECT_NAME           = @PACKAGE_NAME@
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = @PACKAGE_VERSION@
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer
 # a quick idea about the purpose of the project. Keep the description short.
 
-PROJECT_BRIEF          =
+PROJECT_BRIEF          = "A wrapper library for evdev devices"
 
 # With the PROJECT_LOGO tag one can specify an logo or icon that is
 # included in the documentation. The maximum height of the logo should not
@@ -186,7 +186,7 @@ SEPARATE_MEMBER_PAGES  = NO
 # The TAB_SIZE tag can be used to set the number of spaces in a tab.
 # Doxygen uses this value to replace tabs by spaces in code fragments.
 
-TAB_SIZE               = 4
+TAB_SIZE               = 8
 
 # This tag can be used to specify a number of aliases that acts
 # as commands in the documentation. An alias has the form "name=value".
@@ -969,7 +969,7 @@ HTML_COLORSTYLE_GAMMA  = 80
 # page will contain the date and time when the page was generated. Setting
 # this to NO can help when comparing the output of multiple runs.
 
-HTML_TIMESTAMP         = NO
+HTML_TIMESTAMP         = YES
 
 # If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
 # documentation will contain sections that can be hidden and shown after the