Updated Running (markdown)
update suggested -Xss value to 1024k (default for 64bit JVM's)
docs: add a troubleshooting entry about the StackOverflowError
s/EpubCheck/EPUBCheck/
notes on java
Cosmetic edit to the newly-added description of the new `profile` CLI switch
Add doc about the new `profile` command line switch
Import and adapt wiki content from Google Code