Added a new VTE version compatiblity information: ENABLE_BEEP_SINGAL
GTK3: fix a race condition error.
GTK3: fix a strange geometry behavior.
GTK3: better geometry behavior with hints_type=HINTS_NONE when draging.
Merge pull request #34 from josephgbr/master

Update pt_BR translation
GTK3: window must shown before gtk_window_parse_geometry()
Use <Ctrl><Numpad+-> to increase/decrease window size.
Disable EXIST_GTK_FONT_CHOOSER_SET_FILTER_FUNC.
Smarter method for getting current directory when adding a new tab.
Clear a "PATH_MAX" redefined compiling warning in FreeBSD.
GTK3: replace GtkColorSelection with GtkColorChooser.
Fix some typo.
Added a new key binding: [Clean scrollback lines]. Close #39
Updated Brazilian Portuguese translation

Signed-off-by: Rafael Ferreira <rafael.f.f1@gmail.com>