Almost all translators converted to UTF-8

Basically, only "from __future__ import print_function" added.

The mailto.txt file is generated by the translator.py.

There was an encoding bug introduced in the past. The characters 'š',
'č', and 'ž' were substitued in editor instead of the funny nochars.

It already was in UTF-8. It was only declared as BIG5. Trailing
spaces removed. TranslatorDecoder removed for the language.

Serbian translator was already in UTF-8. The decode() method was removed.

The decode() method removed.

The ë replaced by the character.

sqlite3 fixes

Several TranslatorXxxx files converted to UTF-8

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>

The TranslatorRussian already uses UTF-8; anyway, TranslatorDecoder
was still used in the language.cpp.

The TranslatorRomanian was already converted to UTF-8 earlier, but
the TranslatorDecoder was still used in the language.cpp.