Merge pull request #6 from lucadelu/master

add las2tindex script and documentation
update FindGDAL to support GDAL 2.0+ too
Changes to cmake configuration (roughly in order of importance):

(1) Add support for find_package(libLAS). Installation adds a file
liblas-config.cmake to the installation tree and find_package will use
this to determine the include directories and library paths.

(2) Fix FindGeoTIFF.cmake so that it works for Linux (PATH_PREFIXES
should be PATH_SUFFIXES and libgeotiff needs to be searched as well as
geotiff).

(3) Remove -pedantic compilation option for Unix because it causes
compilation to fail with boost 1.15.0 under Linux (because of a comma at
the end of an enum list).

(4) Add runtime library path to libLAS utilities for Unix.

(5) Remove -Wcast-qual, -Wfloat-equal, and -Wredundant-decls compilation
options for Unix to reduce the number of compilation warnings.
Merge pull request #13 from cffk/master

Patches to cmake configuration for libLAS 1.7.0
correct offset conversion between bin and las
Merge pull request #15 from ndavid/master

correct conversion between ts file and las file
fix #16 support GEO_NORMALIZE_DISABLE_TOWGS84 symbol
Merge pull request #16 from libLAS/issues/16

If GEO_NORMALIZE_DISABLE_TOWGS84 is defined, we need to not use GDAL/GeoTIFF wgs84 stuff
Update doc/tutorial/cpp.txt

Corrections on making a classification filter (#18)
Output enough scaling digits for #21
Merge pull request #21 from libLAS/issues/21-insufficient-scaling

Not enough precision is provided when outputting non log-10 scale factors
Fix SetCompressed method name in C++ tutorial.

Close #10.
Add _build to .gitignore
Remove redundant typedef
Configure Travis CI for libLAS
Install Boost on Travis CI
Test with verbose output