Update French translation.
Use lower-case for labels as for all IOP.

Update the French translation accordingly.
Updated Dutch translation
Merge pull request #487 from MRIG/master

Updated Dutch translation
[l10n] Swedish update
[l10] Swedish, shortened translation of 'deflicker'
introspection: Make it compile with g++4.6

Old versions of g++ didn't support the C way of initialising a union:
  union {int i; char c[4];} u = {.i = 23};
instead they require
  union {int i; char c[4];} u;
  u.i = 23;
which however upsets gcc. #ifdef __cplusplus FTW! :/
introspection: add type_name and make char* const