Unbreak build for those of us who don't have boost installed.

Error was:
kdevplatform/cmake/modules/FindBoost.cmake:172:
math cannot parse the expression: " / 100000": syntax error, unexpected exp_DIVIDE, expecting exp_OPENPARENT or exp_NUMBER (2)

It now says:

• Found The Following Boost Libraries:
• thread
• serialization
• Boost Version: ..

Given the output above, I don't know if I have boost or not.