CRA-706: Fixed getting of Vp/Vs ratio for wavelet estimation so it is the correct value in single zone cases.

Also a series of fixes to make it compile on linux
Merge branch 'CRA-505' of git://github.com/CRAVA/crava into CRA-706

Conflicts:
	src/blockedlogscommon.cpp
	src/commondata.cpp
Merge pull request #119 from RagnarHauge/CRA-505

CRA-706 Wavelet fixes plus changes to make it compile on linux. Note: Unblocked wells are no longer written.