Merge pull request #645 from rclasen/fix-win

Fix SRM download issues on windows/mingw
Intervals indexes crash / parser error

2 bugs:
- interval offset of -1 causes a crash in htmlSummary
- interval offset of form nnn e+0n parses incorrectly

Also remove silly -wreorder warning in ridefile.h
Srmio less wordy version

.. still provides version and commit but removed
   unneccessary words as it skewed the output.

I'm strangely anal about alignment !
make srmio details in version dialog conditionally

... so that GC keeps building with older srmio versions.