Merge pull request #33 from potree/develop

Develop
Merge pull request #35 from chiccorusso/clion

Added .idea to .gitignore. Builds with JetBrains CLion.
added hpp files to cmake build
quick fix for bin format memory leak
removed Mac OSX build warning
Merge pull request #50 from potree/develop

Develop
Fix non-void-return error in PotreeWriter.cpp
Merge pull request #53 from tigerfoot/issue51

Fix non-void-return error in PotreeWriter.cpp issue 51 & 52
merging georepublic fixes
Merge branch 'Georepublic-develop_remove_warning' into develop
fixed read loop range
fixed las and laz output