update proj4; ignore projection if it throws error

Author: potree

.gitignore

@@ -30,3 +30,4 @@ libs/CesiumUnminified
 /pointclouds/sjl2
 /pointclouds/morro_bay_converted
 /pointclouds/helimap_epalinges
+pointclouds/F

libs/proj4/LICENSE.md

@@ -1,4 +1,4 @@
-##Proj4js -- Javascript reprojection library. 
+## Proj4js -- Javascript reprojection library. 
 
 Authors:
 - Mike Adair madairATdmsolutions.ca
@@ -26,4 +26,4 @@ Copyright (c) 2014, Mike Adair, Richard Greenwood, Didier Richard, Stephen Irons
  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE._
+ DEALINGS IN THE SOFTWARE._

libs/proj4/README.md

@@ -1,8 +1,8 @@
 # PROJ4JS [![Build Status](https://travis-ci.org/proj4js/proj4js.svg)](https://travis-ci.org/proj4js/proj4js)
 
 Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.
-Originally a port of [PROJ.4](http://trac.osgeo.org/proj/) and [GCTCP C](http://edcftp.cr.usgs.gov/pub//software/gctpc) it is
-a part of the [MetaCRS](http://wiki.osgeo.org/wiki/MetaCRS) group of projects.
+Originally a port of [PROJ](https://proj.org/) ([then known as PROJ.4](https://proj.org/faq.html#what-happened-to-proj-4)) and GCTCP C ([Archive](https://web.archive.org/web/20130523091752/http://edcftp.cr.usgs.gov/pub/software/gctpc/)) it is
+a part of the [MetaCRS](https://trac.osgeo.org/metacrs/wiki) group of projects.
 
 ## Installing
 
@@ -11,17 +11,16 @@ Depending on your preferences
 ```bash
 npm install proj4
 bower install proj4
-jam install proj4
 component install proj4js/proj4js
 ```
 
-or just manually grab the file `proj4.js` from the [latest release](https://github.com/proj4js/proj4js/releases).
+or just manually grab the file `proj4.js` from the [latest release](https://github.com/proj4js/proj4js/releases)'s `dist/` folder.
 
-if you do not want to download anything, Proj4js is also hosted on [cdnjs](http://www.cdnjs.com/libraries/proj4js) for direct use in your browser applications.
+If you do not want to download anything, Proj4js is also hosted on [cdnjs](https://www.cdnjs.com/libraries/proj4js) for direct use in your browser applications.
 
 ## Using
 
-the basic signature is:
+The basic signature is:
 
 ```javascript
 proj4(fromProjection[, toProjection, coordinates])
@@ -57,7 +56,7 @@ proj4(secondProjection,firstProjection).inverse([2,5]);
 // [-2690666.2977344505, 3662659.885459918]
 ```
 
-and as above if only one projection is given, it's assumed to be coming from wgs84
+And as above if only one projection is given, it's assumed to be coming from wgs84:
 
 ```javascript
 proj4(firstProjection).forward([-71,41]);
@@ -89,7 +88,7 @@ proj4.defs([
 ]);
 ```
 
-you can then do 
+you can then do
 
 ```js
 proj4('EPSG:4326');
@@ -106,48 +105,56 @@ instead of writing out the whole proj definition, by default proj4 has the follo
     - 'EPSG:900913'
     - 'EPSG:102113'
 
-defined projections can also be accessed through the proj4.defs function (`proj4.defs('EPSG:4326')`).
+Defined projections can also be accessed through the proj4.defs function (`proj4.defs('EPSG:4326')`).
 
 proj4.defs can also be used to define a named alias:
 
 ```javascript
 proj4.defs('urn:x-ogc:def:crs:EPSG:4326', proj4.defs('EPSG:4326'));
-``` 
+```
+
+## TypeScript
+
+TypeScript implementation was added to the [DefinitelyTyped repository](https://github.com/DefinitelyTyped/DefinitelyTyped).
+
+```bash
+$ npm install --save @types/proj4
+```
 
 ## Developing
-to set up build tools make sure you have node and grunt-cli installed and then run `npm install`
+To set up build tools make sure you have node and grunt-cli installed and then run `npm install`.
 
-to do the complete build and browser tests run
+To do the complete build and browser tests run:
 
 ```bash
-grunt
+node_modules/.bin/grunt
 ```
 
-to run node tests run
+To run node tests run:
 
 ```bash
 npm test
 ```
 
-to run node tests with coverage run
+To run node tests with coverage run:
 
 ```bash
-node test --coverage
+npm test --coverage
 ```
 
-to create a build with only default projections (latlon and Mercator) run 
+To create a build with only default projections (latlon and Mercator) run:
 
 ```bash
-grunt build
+node_modules/.bin/grunt build
 ```
 
-to create a build with only custom projections include a comma separated list of projections codes (the file name in 'lib/projections' without the '.js') after a colon, e.g.
+To create a build with only custom projections include a comma separated list of projections codes (the file name in 'lib/projections' without the '.js') after a colon, e.g.:
 
 ```bash
-grunt build:tmerc
+node_modules/.bin/grunt build:tmerc
 #includes transverse Mercator
-grunt build:lcc
+node_modules/.bin/grunt build:lcc
 #includes lambert conformal conic
-grunt build:omerc,moll
+node_modules/.bin/grunt build:omerc,moll
 #includes oblique Mercator and Mollweide
 ```