Updated Dutch translation
Unref the picure mapped file only after it has been copied.

Fix crash when exporting to Picasa.
Proof-reading of chapter 1
Merge pull request #497 from VictorLamoine/translation_ready

Proof-reading of chapter 1
New round of magicnum vs. sizeof(staticbuf) cleanups
Use size_t as variable type for storage of sizeof(staticbuf)
Merge pull request #498 from LebedevRI/sizeof-cleanup

Sizeof cleanup
Updated Dutch translation
Merge pull request #499 from MRIG/master

typo
Masks: do not use float variable as loop counter!
Use guint as variable type for g_list_length() results
No strcat calls left. please use g_strlcat in new code :)
No strcpy calls left. please use g_strlcpy in new code :)
Updated Dutch translation
Merge pull request #501 from MRIG/master

Updated Dutch translation
Update French translation.
lua doc : set_text returns the node to allow chaining
lua doc : force singletons to never be documented as types
add a function to check if a lib is expanded
fix various cases where functions assumed the widget existed