Only show error popup first time an error is found.
An error popup is shown if an error is found under init
or first time an error found under scanning. Error popup
is suppressed until restarting claws or a scanning is
performed with success.
Fix bug in string thanks to Mones
Fix hardened builds and typo in configure.ac

Removes:
 • clamav_plugin.c:149:5: error: format not a string literal and
   no format arguments [-Werror=format-security]
 • ./configure: line 20189: dbl: command not found
Factorize SSL things in etpan
Implement certificate chain retrieval and passing. CAs are not loaded
yet.
Implement certificate chain verification; fix leak; fix return code
for etpan_certificate_check().
Fix claws exports for windows
Remove dead code from OpenSSL days
Fix using ints for gnutls_x509_crt_fmt_t.
Rename i2d/d2i internal functions to clearer import/export.
More cleanup
Add missing syms. Serious Win32 PITA
Update root CA certificates
Fix ChangeLog generation when only one file changes
Fix unitialized variable. Maybe cause of crash under Win32.
Replace deprecated INCLUDES with AM_CPPFLAGS; where needed, still
keep the -I flags separated in $(IFLAGS) for $(LTRCCOMPILE).
Fix double define
Fix another double define, and add subdir-objects where needed
Add avatar to the prints.
Change the blueness in Drafts folders to saving drafts as New. It makes
the folder noticed too, but the user can mark the draft as read if he
desires.