Waftools

- *eclipse*; add <prefix>/lib and <prefix>/lib64 to LD_LIBRARY_PATH of launchers

- *eclipse*; added missing deps import
- *eclipse*; warn instead of abort when C++ compiler has not been configured
- issue16_; fixed external lib paths for msdev tool (visual studio 10.0)
- *indent*; fixed crash when using --indent-cleanup option
- *indent*; improved detection of .indent.pro configuration file

- *general*; updated to waf version 1.8.19
- *general*; tested with waf versions 1.8.10 ~ 1.8.19
- *general*; tested with python-2.7.10 and python python-3.4.3
- *ccenv*; add */DEBUG* link option; used for exporting debug program database
- *ccenv*; add */Fd<appname>.pdb* CL link option; specifies debug program database name
- *cppcheck*; presence is now optional, source code checking will be skipped durinig build when not available
- issue17_; removed redundant quotes around preprocessor defines

- *general*; updated to waf version 1.8.7
- *cmake*, *makefile*; improved detection of include paths
- issue14_; set external path and symbol references

- *bdist*; renamed module *package* into *bdist*, better reflects intended use of the module
- *ccenv*; use a shallow environment copy, i.e. use env.derive() for each variant build environment

- *ccenv*; added configuration option *host* (e.g. host = linux), only create variant build environment when building on the specified host
- *general*; updated documentation to use theme from 'Read the Docs'