Comment out Werror flag in cmake script

Werror flag should be only enabled on developer's machine, not for
users using the product.
Also fix formatting.

cmake/Modules/MacroQbtCompilerSettings.cmake

@@ -11,18 +11,17 @@ macro(qbt_set_compiler_options)
  #-Wshadow -Wconversion ?
  set(_GCC_COMMON_C_AND_CXX_FLAGS "-Wall -Wextra"
  "-Wfloat-equal -Wcast-qual -Wcast-align"
- "-Wsign-conversion -Winvalid-pch -Werror=return-type -Wno-long-long"
-# -fstack-protector-all
- "-Werror -Wno-error=deprecated-declarations"
+ "-Wsign-conversion -Winvalid-pch -Wno-long-long"
+ #"-fstack-protector-all"
+ #"-Werror -Wno-error=deprecated-declarations"
  )
- set (_GCC_COMMON_CXX_FLAGS  "-fexceptions -frtti"
+ set(_GCC_COMMON_CXX_FLAGS "-fexceptions -frtti"
  "-Woverloaded-virtual -Wold-style-cast"
  "-Wnon-virtual-dtor -Wfloat-equal -Wcast-qual -Wcast-align"
- "-Werror=overloaded-virtual"
- # "-Weffc++"
- "-Werror -Wno-error=cpp"
+ #"-Weffc++"
+ #"-Werror -Wno-error=cpp"
  # we should modify code to make these ones obsolete
- "-Wno-error=sign-conversion -Wno-error=float-equal"
+ #"-Wno-error=sign-conversion -Wno-error=float-equal"
  )
 
  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)