Merge pull request #645 from etmc/release/6.0.0

prepare 6.0.0 release

- Code cleanup in update_tm.c:

1) Flags treated as flags, so no numerical comparisons for flags.
   Example: if(accept==1) should be if(accept)
   Mainly bc_flag instances replaced (bad name! should be sf_bc)
2) If and loop cleanup, same action to be taken always should go outside
   if loops, instead of repeating inside, same for repeated for loops.
- Typos fixed in update_tm.c and hmc_tm.c
- Whitespace alignment in io/Makefile.in

cross-checked verison of even/odd for Block_D_psi

even/odd for Block_D_psi implemented, but not yet working correctly

this is a snapshot of a working deflation version

This commit was manufactured by cvs2svn to create tag 'rel-5-1-5'.

This commit was manufactured by cvs2svn to create tag 'stable'.

This commit was manufactured by cvs2svn to create tag 'rel-5-1-4'.

This commit was manufactured by cvs2svn to create tag 'rel-5-0-4'.

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