Translation update for 0.7.1

Also clarify translation process that the package `gettext` is needed to run string extractor.

doc/translation_process.md

@@ -34,7 +34,9 @@ This directory contains all translations. Filenames must adhere to this format:
 source for all other translations. Whenever a string in the code is changed
 this file must be updated to reflect those changes. This can be accomplished
 by running `lupdate` (included in the Qt SDK). Also, a custom script is used
-to extract strings from the non-Qt parts:
+to extract strings from the non-Qt parts. This script makes use of `gettext`,
+so make sure that utility is installed (ie, `apt-get install gettext` on 
+Ubuntu/Debian):
 
     python share/qt/extract_strings_qt.py
     lupdate bitcoin-qt.pro -no-obsolete -locations relative -ts src/qt/locale/bitcoin_en.ts

src/qt/bitcoinstrings.cpp

@@ -19,6 +19,11 @@ QT_TRANSLATE_NOOP("bitcoin-core", ""
 "Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:"
 "@STRENGTH)"),
 QT_TRANSLATE_NOOP("bitcoin-core", ""
+"An error occurred while setting up the RPC port %i for listening on IPv6, "
+"falling back to IPv4: %s"),
+QT_TRANSLATE_NOOP("bitcoin-core", ""
+"An error occurred while setting up the RPC port %u for listening on IPv4: %s"),
+QT_TRANSLATE_NOOP("bitcoin-core", ""
 "Cannot obtain a lock on data directory %s.  Bitcoin is probably already "
 "running."),
 QT_TRANSLATE_NOOP("bitcoin-core", ""
@@ -34,6 +39,8 @@ QT_TRANSLATE_NOOP("bitcoin-core", ""
 "Execute command when the best block changes (%s in cmd is replaced by block "
 "hash)"),
 QT_TRANSLATE_NOOP("bitcoin-core", ""
+"Listen for JSON-RPC connections on <port> (default: 8332 or testnet: 18332)"),
+QT_TRANSLATE_NOOP("bitcoin-core", ""
 "Number of seconds to keep misbehaving peers from reconnecting (default: "
 "86400)"),
 QT_TRANSLATE_NOOP("bitcoin-core", ""
@@ -60,7 +67,6 @@ QT_TRANSLATE_NOOP("bitcoin-core", "Accept connections from outside (default: 1 i
 QT_TRANSLATE_NOOP("bitcoin-core", "Add a node to connect to and attempt to keep the connection open"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Allow DNS lookups for -addnode, -seednode and -connect"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Allow JSON-RPC connections from specified IP address"),
-QT_TRANSLATE_NOOP("bitcoin-core", "An error occurred while setting up the RPC port %i for listening: %s"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Bind to given address. Use [host]:port notation for IPv6"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Bitcoin version"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Bitcoin"),
@@ -92,15 +98,15 @@ QT_TRANSLATE_NOOP("bitcoin-core", "Generate coins"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Get help for a command"),
 QT_TRANSLATE_NOOP("bitcoin-core", "How many blocks to check at startup (default: 2500, 0 = all)"),
 QT_TRANSLATE_NOOP("bitcoin-core", "How thorough the block verification is (0-6, default: 1)"),
-QT_TRANSLATE_NOOP("bitcoin-core", "Importing blocks..."),
+QT_TRANSLATE_NOOP("bitcoin-core", "Importing blockchain data file."),
+QT_TRANSLATE_NOOP("bitcoin-core", "Importing bootstrap blockchain data file."),
 QT_TRANSLATE_NOOP("bitcoin-core", "Imports blocks from external blk000?.dat file"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Insufficient funds"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Invalid -proxy address: '%s'"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Invalid -tor address: '%s'"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Invalid amount for -paytxfee=<amount>: '%s'"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Invalid amount"),
 QT_TRANSLATE_NOOP("bitcoin-core", "List commands"),
-QT_TRANSLATE_NOOP("bitcoin-core", "Listen for JSON-RPC connections on <port> (default: 8332)"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Listen for connections on <port> (default: 8333 or testnet: 18333)"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Loading addresses..."),
 QT_TRANSLATE_NOOP("bitcoin-core", "Loading block index..."),