Use same mnemonic for 'Categories' button in Task editor as in all other dialogs as it does not collide with other mnemonics

Reworded to match exactly what GtkFileChooser shows.

Use i as mnemonic for Filename string everywhere. This does not conflict with other mnemonics in the affected dialogs.

GTK's file chooser dialog provides one-click access to recently used
documents now, so we can remove the redundancy from Evolution's mail
composer main menu and calendar component editor main menu and leave
it at "Insert -> Attachment".

Alexandre Rostovtsev authored Feb 17, 2012 and Milan Crha committed Feb 17, 2012

clutter-gtk-1.0 installs headers in /usr/include/clutter-gtk-1.0/clutter-gtk;
clutter-gtk-0.10 installs headers in /usr/include/clutter-1.0/clutter-gtk

To ensure that clutter-gtk-1.0's headers (and not 0.10's) are used,
-I/usr/include/clutter-gtk-1.0 must come before -I/usr/include/clutter-1.0
in CLUTTER_CFLAGS. And that means clutter-gtk-1.0 must come before mx-1.0
in PKG_CHECK_MODULES.