Updating translations for de, es, fi, nl, pt, sk, zh_CN, zh_TW

[UdjinM6]

Pulled the latest files from Transifex and ran them through contrib/devtools/update-translations.py.

Known issues:

dash_zh_CN.ts: Mismatch between 'Start &all' and '启动全部(%A)'
dash_zh_CN.ts: Mismatch between 'Open the %1 debug log file from the current data directory. This can take a few seconds for large log files.' and '打开当前目录中的调试日志文件。日志文件大的话可能要等上几秒钟。'
dash_zh_CN.ts: Mismatch between 'Too many %f denominations, removing.' and '太多面额化资金，正在移除。'
dash_zh_CN.ts: Mismatch between 'Initialization sanity check failed. %s is shutting down.' and '初始化完整性检查失败。% 即将

EDIT: These ^^^ are fixed by cde6924, no mismatches in script output anymore.

[strophy]

These issues have been fixed on Transifex, shouldn't throw errors now.

[codablock]

ACK for the German translations...even though I don't like how technical terms are sometimes translated when it would be better to stick with the English terms. But this is already everywhere in the German translations, so it's at least consistant.