use null not empty string in java path when missing
CHANGED: Store map, mod pack and texture pack archives in Local appdata instead of Roaming on Windows
ADDED: Migration of cached archives from old (roaming) to new (local) storage
FIXED: Unknown error setting download servers: null
Merge pull request #713 from Viper-7/139

FIXED: Unknown error setting download servers: null
remove excess imports and extra set DL servers in launchframe
New feature: log into stdout/stderr

 * Moved Logging system control code from LauncherConsole to
   LauncFrame.main().
 * Added log/OutputOverride.java: moved code from LauncherConsole.java
 * Added log/StdfOutLogger: Provides basic stdout/stderr logging
LaunchFrame.java: Check if Console is needed

 * Create and show console only if configured
 * Add console as an log listener only if configured
bump version for next dev cycle
Merge pull request #709 from Viper-7/master

CHANGED: Store map, mod pack and texture pack archives in Local appdata instead of Roaming on Windows
Merge pull request #714 from jikuja/feature_log_to_stdout_v2

Logging fixes