fixed length for 80 cols max
Whitespace adding for improving readability

This patch adds some blank lines, spaces and indention in various places
to improve readability of the source code.
removed unnecessary whitespace

This patch removes some unnecessary whitespace.
moved multi-statement lines to one-statement lines

in MurmurHash3_x86_128 and MurmurHash3_x64_128
Merge pull request #11 from matthiasbeyer/source_cleanup

Source cleanup