[cppcheck-fix][unitialized-var]

This commit fixes followings errors reported by cppcheck-1.58:
[src/BSplCLib/BSplCLib_2.cxx:672]: (error) Uninitialized variable: index
[src/BSplCLib/BSplCLib_2.cxx:676]: (error) Uninitialized variable: index
[src/BSplCLib/BSplCLib_2.cxx:673]: (error) Uninitialized variable: new_parameter
[src/LDOM/LDOM_BasicElement.cxx:228]: (error) Uninitialized variable: aHash
[src/LDOM/LDOM_BasicElement.cxx:237]: (error) Uninitialized variable: aHash
[src/LDOM/LDOM_BasicElement.cxx:460]: (error) Uninitialized variable: aHash
Merge pull request #347 from tpaviot/review/cppcheck-1.58-fixes

cppcheck-1.58 fixes