Change Oanda url to https

This caused several different issues for different users and it wasn't
clear the redirect was the cause. In some cases download.file() would
report that the URL could not be opened. In another case, the HTML
would be downloaded, causing an error when trying to manipulate the
object returned by read.csv().

Bump version. Update URLs in package man page.

Author: joshuaulrich

DESCRIPTION

@@ -1,8 +1,8 @@
 Package: quantmod
 Type: Package
 Title: Quantitative Financial Modelling Framework
-Version: 0.4-5
-Date: 2015-07-23
+Version: 0.4-6
+Date: 2016-04-07
 Authors@R: c(
   person(given=c("Jeffrey","A."), family="Ryan", role=c("aut","cph")),
   person(given=c("Joshua","M."), family="Ulrich", role=c("cre","ctb"), email="josh.m.ulrich@gmail.com"),

R/getSymbols.R

@@ -1073,7 +1073,7 @@ function(Symbols,env,return.class='xts',
            dateLoc <- length(dateStr)
        }
        data_range <- dateStr[dateLoc[1]]
-       oanda.URL <- paste("http://www.oanda.com/currency/historical-rates/download?",
+       oanda.URL <- paste("https://www.oanda.com/currency/historical-rates/download?",
          "quote_currency=", currency.pair[1],
          "&end_date=", to,
          "&start_date=", from,

man/quantmod-package.Rd

@@ -13,14 +13,14 @@ Quantitative Financial Modelling and Trading Framework for R
 \tabular{ll}{
 Package: \tab quantmod\cr
 Type: \tab Package\cr
-Version: \tab 0.4-4\cr
-Date: \tab 2015-03-08\cr
+Version: \tab 0.4-6\cr
+Date: \tab 2016-04-07\cr
 Depends: \tab xts(>= 0.9-0),zoo,TTR(>= 0.2),methods\cr
-Suggests: \tab DBI,RMySQL,RSQLite,timeSeries,its,XML\cr
+Suggests: \tab DBI,RMySQL,RSQLite,timeSeries,its,XML,downloader\cr
 LazyLoad: \tab yes\cr
 License: \tab GPL-3\cr
 URL: \tab http://www.quantmod.com\cr
-URL: \tab http://quantmod.r-forge.r-project.org\cr
+URL: \tab https://github.com/joshuaulrich/quantmod\cr
 }
 The quantmod package for R is designed to
 assist the quantitative trader in the