[Cfg] Fix build problems with Clang (OS 10.9, libc++)
[Cfg] README file added.
[Cfg] More detailed ReadMe file
[Qa] Fix build errors when compiling IFCPlusPlusViewer
Merge branch 'CMakefiles'
Added IfcPPTypeBroker to create TYPE objects efficiently. 
Fixed bug in STEP reader (tokenizing of string arguments).

git-svn-id: http://ifcplusplus.googlecode.com/svn/trunk@20 06f6d6f3-f2e0-f239-6e86-ba6a5d17d3a5
added script to set environment variables for OSG and Qt

git-svn-id: http://ifcplusplus.googlecode.com/svn/trunk@21 06f6d6f3-f2e0-f239-6e86-ba6a5d17d3a5
[Fix] Implicit casts are EVIL. Make sure to use the overloaded std::abs(float/long/whatever) instead of the antic abs(int) from libstd.h
[Fix] Handle double quotes in strings when parsing the STEP file
[Qa] Checking meshset_openings is unfortunately always required to prevent null pointer dereferencing (when a CSG operation failed for instance)
[Fix] Fix to compile Carve with Clang
Merge branch 'fromSVN'  r21
Merge branch 'master' into CMakefiles
added some missing files from last commit

git-svn-id: http://ifcplusplus.googlecode.com/svn/trunk@22 06f6d6f3-f2e0-f239-6e86-ba6a5d17d3a5
Merge branch 'fromSVN'
Merge branch 'master' into CMakefiles
[Fix] Adapting the CMakeFiles to the latest SVN commits (r20 & r22)
[Fix] Avoid a compilation error by switching an implicit cast to an explicit cast
[Fix] Inlining the findEndOfstring() function would hide it from other source files. —> inline specifier removed
[Fix] Don’t specify the enum type