Added the man of input-pad .
Released 1.0.3

Some unofficial IPA, labial-velars, laterals, nasal releases, ...
Added data for Old English and Middle English.
Enalbed XTEST because glib2 uses XI2.
Enabled GTK3 by default.
Fixed an error with gcc -Wformat -Werror=format-security .
Updated translations.
Added the man of input-pad .