Nikkei soars to 7-yr high on weak yen after Scottish vote, Abe's pension reform

* PM Abe's comments bolster stocks and dollar/yen * Nikkei highest since pre financial crisis level * Yen drops to six-year low vs dollar after vote went against Scottish independence By Ayai Tomisawa TOKYO, Sept 19 (Reuters) - Japanese stocks soared to a seven-year high on Friday after the yen dropped sharply after Scottish voters rejected a bid for independence and averted a break-up of the United Kingdom. Afternoon comments by Prime Minister Shinzo Abe to carry out pensio